feat: improve footer UI

Author: Abhash-Chakraborty

src/components/scroll/bottom-to-top.tsx

@@ -31,10 +31,9 @@ export default function ScrollBottomToTop() {
     <div className="scroll-to-top">
       {isVisible && (
         <button
-         aria-label="Scroll to top"
+          aria-label="Scroll to top"
           onClick={scrollToTop}
-          className="fixed right-5 bottom-5 z-50 cursor-pointer rounded-full border-none bg-gray-700 p-3 text-white shadow-lg transition-opacity duration-300 hover:bg-gray-800 dark:bg-gray-600 dark:hover:bg-gray-700"
-          style={{ backgroundColor: "var(--ifm-color-primary)" }}
+          className="scroll-to-top-button"
         >
           <FaArrowUp />
         </button>