Too many changes i forgot

src/element/FollowButton.js

@@ -0,0 +1,21 @@
+import { useSelector } from "react-redux";
+import useEventPublisher from "../feed/EventPublisher";
+
+export default function FollowButton(props) {
+    const pubkey = props.pubkey;
+    const className = props.className ? `btn ${props.className}` : "btn";
+    const publiser = useEventPublisher();
+    const follows = useSelector(s => s.login.follows);
+    
+    async function follow(pubkey) {
+        let ev = await publiser.addFollow(pubkey);
+        publiser.broadcast(ev);
+    }
+
+    let isFollowing = follows?.includes(pubkey) ?? false;
+    return (
+        <div className={className} onClick={() => follow(pubkey)}>
+            {isFollowing ? "Unfollow" : "Follow"}
+        </div>
+    )
+}