Add retry-on-empty for followers, articles, and hashtag feeds

Same pattern as profile notes and notifications: if the first relay
fetch returns empty, wait 3s and retry once. Prevents false "No X
found" messages when relays are slow to connect.

src/components/follows/FollowsView.tsx

@@ -103,7 +103,13 @@ export function FollowsView() {
     (async () => {
       try {
         await ensureConnected();
-        const result = await fetchFollowers(pubkey);
+        let result = await fetchFollowers(pubkey);
+        // Retry once if empty — relays may not be ready yet
+        if (result.length === 0) {
+          await new Promise((r) => setTimeout(r, 3000));
+          if (cancelled) return;
+          result = await fetchFollowers(pubkey);
+        }
         if (!cancelled) {
           setFollowers(result);
           setFollowersFetched(true);