Fix badly visible focus outlines in composer (#37250)

app/javascript/mastodon/features/compose/components/language_dropdown.tsx

@@ -399,9 +399,10 @@ export const LanguageDropdown: React.FC = () => {
   }
 
   return (
-    <div ref={targetRef}>
+    <>
       <button
         type='button'
+        ref={targetRef}
         title={intl.formatMessage(messages.changeLanguage)}
         aria-expanded={open}
         onClick={handleToggle}
@@ -438,6 +439,6 @@ export const LanguageDropdown: React.FC = () => {
           </div>
         )}
       </Overlay>
-    </div>
+    </>
   );
 };