Fix poll latest loop (#1901)

* Avoid pollLatest loop

* Set poll interval on profile feeds

src/view/com/posts/Feed.tsx

@@ -106,6 +106,9 @@ export function Feed({
     checkForNewRef.current = checkForNew
   }, [checkForNew])
   React.useEffect(() => {
+    if (!pollInterval) {
+      return
+    }
     const i = setInterval(() => checkForNewRef.current?.(), pollInterval)
     return () => clearInterval(i)
   }, [pollInterval])

src/view/screens/Profile.tsx

@@ -350,6 +350,7 @@ const FeedSection = React.forwardRef<SectionRef, FeedSectionProps>(
         <Feed
           testID="postsFeed"
           feed={feed}
+          pollInterval={30e3}
           scrollElRef={scrollElRef}
           onHasNew={setHasNew}
           onScroll={onScroll}