removed redux completely

src/hooks/dom/useScrollTop.ts

@@ -0,0 +1,16 @@
+import { useEffect, useState } from 'react';
+
+export const useScrollTop = () => {
+  const [top, setTop] = useState(0);
+
+  useEffect(() => {
+    const onScroll = () => {
+      setTop(window.scrollY);
+    };
+
+    window.addEventListener('scroll', onScroll);
+    return () => window.removeEventListener('scroll', onScroll);
+  }, []);
+
+  return top;
+};