Enable eslint:recommended ruleset (#22433)

* Enable ESLint recommended ruleset

* Disable failing ESLint recommended rules

* Remove rules shadowed by eslint:recommended

app/javascript/mastodon/actions/settings.js

@@ -15,7 +15,7 @@ export function changeSetting(path, value) {
 
     dispatch(saveSettings());
   };
-};
+}
 
 const debouncedSave = debounce((dispatch, getState) => {
   if (getState().getIn(['settings', 'saved'])) {
@@ -31,4 +31,4 @@ const debouncedSave = debounce((dispatch, getState) => {
 
 export function saveSettings() {
   return (dispatch, getState) => debouncedSave(dispatch, getState);
-};
+}