feat(frontend): Remove chat interface header label (#4367)

frontend/src/routes/app.tsx

@@ -245,7 +245,7 @@ function App() {
   return (
     <div className="flex flex-col h-full gap-3">
       <div className="flex h-full overflow-auto gap-3">
-        <Container className="w-1/4 max-h-full" label="Chat">
+        <Container className="w-1/4 max-h-full">
           <ChatInterface />
         </Container>