Properly update chapter list window scroll

Once the window scroller was set, resizing the window to increase the width did not remove the window scroller again

src/util/useResizeObserver.tsx

@@ -9,7 +9,7 @@
 import { RefObject, useLayoutEffect, useState } from 'react';
 
 export const useResizeObserver = (
-    ref: RefObject<HTMLElement> | HTMLElement | undefined,
+    ref: RefObject<HTMLElement> | HTMLElement | undefined | null,
     callback: ResizeObserverCallback,
 ): (() => void) => {
     const [disconnect, setDisconnect] = useState<() => void>(() => {});