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

src/pages/UserUpvoted.tsx

@@ -70,7 +70,6 @@ export function UserUpvoted() {
     if (!profileUserId || me?.id !== profileUserId) return;
     if (prevMyVotesRef.current === null) {
       // setVotedIds + prevMyVotesRef must be co-located to stay consistent.
-      // eslint-disable-next-line react-hooks/set-state-in-effect
       setVotedIds(new Set(myVotes));
       prevMyVotesRef.current = new Set(myVotes);
       return;