chore: Fix several style lints (#17488)

It's not comprehensive enough to start linting on `style` group, but
hey, it's a start.

Release Notes:

- N/A

crates/collab_ui/src/chat_panel/message_editor.rs

@@ -293,8 +293,8 @@ impl MessageEditor {
         completion_fn: impl Fn(&StringMatch) -> (String, CodeLabel),
     ) -> Vec<Completion> {
         let matches = fuzzy::match_strings(
-            &candidates,
-            &query,
+            candidates,
+            query,
             true,
             10,
             &Default::default(),