feat(file input): adding feature to add and remove files

Next up is to create a seperate menu that will show all the files.
Probably as a seperate frame. Needs to be scrollable and can use similar
ui as before

web-app/src/app/index.jsx

@@ -5,6 +5,7 @@ function App() {
   return (
     <div className="dark min-h-screen bg-gray-950 text-white flex justify-center pt-12">
       <ChatLayout />
+      <div></div>
     </div>
   );
 }