Removed username prop, no longer used

frontend/src/Components/BasicWindow.tsx

@@ -2,7 +2,6 @@ import Header from "./Header";
 import Footer from "./Footer";
 
 function BasicWindow({
-  username,
   content,
   buttons,
 }: {
@@ -12,7 +11,7 @@ function BasicWindow({
 }): JSX.Element {
   return (
     <div className="font-sans flex flex-col h-screen bg-white border-2 border-black overflow-auto pt-[110px]">
-      <Header username={username} />
+      <Header />
       <div className="flex flex-col items-center flex-grow">{content}</div>
       <Footer>{buttons}</Footer>
     </div>