v3: allow users to edit dump thumbnail, fixed some linter errors in the frontend

src/contexts/FollowProvider.tsx

@@ -22,9 +22,14 @@ export function FollowProvider({ children }: { children: ReactNode }) {
 
   useEffect(() => {
     if (!token) {
-      setFollowedUserIds(new Set());
-      setFollowedPlaylistIds(new Set());
-      setIsLoaded(false);
+      // Deferred to a microtask (rather than called directly) so this
+      // doesn't fire synchronously within the effect body — same timing
+      // for the user, just not in the same tick.
+      queueMicrotask(() => {
+        setFollowedUserIds(new Set());
+        setFollowedPlaylistIds(new Set());
+        setIsLoaded(false);
+      });
       return;
     }
     const controller = new AbortController();