Docs/coments to background animation component

frontend/src/Components/BackgroundAnimation.tsx

@@ -1,5 +1,10 @@
+//info: Background animation component to animate the background of loginpage
 import { useEffect } from "react";
 
+/**
+ * Renders a background animation component.
+ * This component pre-loads images and starts a background transition animation.
+ */
 const BackgroundAnimation = (): JSX.Element => {
   useEffect(() => {
     const images = [