add: added some ui improvements

front/src/pages/Home.tsx

@@ -199,6 +199,7 @@ export default function Home({socket}: {socket: WebSocket}) {
                         <div className="channels-search">   
                             <h3>Search channels</h3>
                             <input
+                                className="forum-input"
                                 type="text"
                                 placeholder="Search channels"
                                 value={search}