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/settings_ui/src/appearance_settings_controls.rs

@@ -351,13 +351,7 @@ impl EditableSettingControl for UiFontLigaturesControl {
         let mut features = settings
             .ui_font_features
             .as_ref()
-            .map(|features| {
-                features
-                    .tag_value_list()
-                    .into_iter()
-                    .cloned()
-                    .collect::<Vec<_>>()
-            })
+            .map(|features| features.tag_value_list().to_vec())
             .unwrap_or_default();
 
         if let Some(calt_index) = features.iter().position(|(tag, _)| tag == "calt") {