ui: fix some lints

ui/src/components/mail/compose.rs

@@ -699,5 +699,5 @@ pub fn send_draft(context: &mut Context, account_cursor: usize, draft: Draft) ->
             ),
         ));
     }
-    return !failure;
+    !failure
 }

ui/src/components/mail/listing/compact.rs

@@ -123,9 +123,7 @@ impl ListingTrait for CompactListing {
         } else {
             Color::Default
         };
-        let bg_color = if self.cursor_pos.2 == idx && self.selection[&i] {
+        let bg_color = if self.cursor_pos.2 == idx {
-            Color::Byte(246 | 210)
-        } else if self.cursor_pos.2 == idx {
             Color::Byte(246)
         } else if self.selection[&i] {
             Color::Byte(210)

ui/src/components/mail/view/list_management.rs

@@ -55,8 +55,8 @@ impl<'a> Default for UnsubscribeOption<'a> {
 impl<'a> Clone for UnsubscribeOption<'a> {
     fn clone(&self) -> Self {
         match self {
-            UnsubscribeOption::Url(a) => UnsubscribeOption::Url(a.clone()),
+            UnsubscribeOption::Url(a) => UnsubscribeOption::Url(<&[u8]>::clone(a)),
-            UnsubscribeOption::Email(a) => UnsubscribeOption::Email(a.clone()),
+            UnsubscribeOption::Email(a) => UnsubscribeOption::Email(<&[u8]>::clone(a)),
         }
     }
 }

ui/src/components/utilities.rs

@@ -899,12 +899,10 @@ impl Component for StatusBar {
                         if parse_command(&self.ex_buffer.as_str().as_bytes())
                             .to_full_result()
                             .is_ok()
-                        {
+                            && self.cmd_history.last().map(String::as_str)
-                            if self.cmd_history.last().map(String::as_str)
                                 != Some(self.ex_buffer.as_str())
-                            {
+                        {
-                                self.cmd_history.push(self.ex_buffer.as_str().to_string());
+                            self.cmd_history.push(self.ex_buffer.as_str().to_string());
-                            }
                         }
                         self.ex_buffer.clear();
                     }

ui/src/conf/accounts.rs

@@ -137,7 +137,7 @@ impl<'a> Iterator for MailboxIterator<'a> {
         if let Some(Err(_)) = self.folders[&fh] {
             return Some(None);
         }
-        return Some(Some(self.folders[&fh].as_ref().unwrap().as_ref().unwrap()));
+        Some(Some(self.folders[&fh].as_ref().unwrap().as_ref().unwrap()))
     }
 }