use as_deref instead of as_ref for account.name

Reasons:
- More concise.
- Avoids the need for map(String::str).

Signed-off-by: Perma Alesheikh <me@prma.dev>

src/email/envelope/command/list.rs

@@ -71,7 +71,7 @@ impl ListEnvelopesCommand {
         info!("executing list envelopes command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/envelope/command/watch.rs

@@ -41,7 +41,7 @@ impl WatchEnvelopesCommand {
 
         let folder = &self.folder.name;
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/envelope/flag/command/add.rs

@@ -46,7 +46,7 @@ impl FlagAddCommand {
         let folder = &self.folder.name;
         let (ids, flags) = into_tuple(&self.args.ids_and_flags);
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/envelope/flag/command/remove.rs

@@ -46,7 +46,7 @@ impl FlagRemoveCommand {
         let folder = &self.folder.name;
         let (ids, flags) = into_tuple(&self.args.ids_and_flags);
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/envelope/flag/command/set.rs

@@ -46,7 +46,7 @@ impl FlagSetCommand {
         let folder = &self.folder.name;
         let (ids, flags) = into_tuple(&self.args.ids_and_flags);
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/attachment/command/download.rs

@@ -47,7 +47,7 @@ impl AttachmentDownloadCommand {
         let ids = &self.envelopes.ids;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/copy.rs

@@ -47,7 +47,7 @@ impl MessageCopyCommand {
         let ids = &self.envelopes.ids;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/delete.rs

@@ -48,7 +48,7 @@ impl MessageDeleteCommand {
         let ids = &self.envelopes.ids;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/forward.rs

@@ -59,7 +59,7 @@ impl MessageForwardCommand {
         let folder = &self.folder.name;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/mailto.rs

@@ -56,7 +56,7 @@ impl MessageMailtoCommand {
         info!("executing mailto message command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/move_.rs

@@ -47,7 +47,7 @@ impl MessageMoveCommand {
         let ids = &self.envelopes.ids;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/read.rs

@@ -92,7 +92,7 @@ impl MessageReadCommand {
         let ids = &self.envelopes.ids;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/reply.rs

@@ -61,7 +61,7 @@ impl MessageReplyCommand {
 
         let folder = &self.folder.name;
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/save.rs

@@ -45,7 +45,7 @@ impl MessageSaveCommand {
         let folder = &self.folder.name;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/send.rs

@@ -44,7 +44,7 @@ impl MessageSendCommand {
         info!("executing send message command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/command/write.rs

@@ -50,7 +50,7 @@ impl MessageWriteCommand {
         info!("executing write message command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/template/command/forward.rs

@@ -53,7 +53,7 @@ impl TemplateForwardCommand {
         let folder = &self.folder.name;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/template/command/reply.rs

@@ -58,7 +58,7 @@ impl TemplateReplyCommand {
         let id = self.envelope.id;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/template/command/save.rs

@@ -49,7 +49,7 @@ impl TemplateSaveCommand {
         let folder = &self.folder.name;
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/template/command/send.rs

@@ -47,7 +47,7 @@ impl TemplateSendCommand {
         info!("executing send template command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/email/message/template/command/write.rs

@@ -36,7 +36,7 @@ impl TemplateWriteCommand {
         info!("executing write template command");
 
         let (_, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/folder/command/create.rs

@@ -38,7 +38,7 @@ impl AddFolderCommand {
 
         let folder = &self.folder.name;
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/folder/command/delete.rs

@@ -51,7 +51,7 @@ impl FolderDeleteCommand {
         };
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/folder/command/expunge.rs

@@ -39,7 +39,7 @@ impl FolderExpungeCommand {
 
         let folder = &self.folder.name;
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/folder/command/list.rs

@@ -40,7 +40,7 @@ impl FolderListCommand {
         info!("executing list folders command");
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;

src/folder/command/purge.rs

@@ -49,7 +49,7 @@ impl FolderPurgeCommand {
         };
 
         let (toml_account_config, account_config) = config.clone().into_account_configs(
-            self.account.name.as_ref().map(String::as_str),
+            self.account.name.as_deref(),
             #[cfg(feature = "account-sync")]
             self.cache.disable,
         )?;