Fix reader page preservation on window resize

For some reason mantines "useWindowEvent" uses a stale callback.
I have no clue why that happens, it is not reproducible in a codesandbox

CHANGELOG.md

@@ -20,6 +20,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - (**Reader**) Fix scrollbar appearing with "fit to widt/height/screen" page scale mode and applied safe area insets
 - (**Reader**) Fix wrongly positioned mobile progress bar current page indicator
 - (**Reader**) Fix mobile progress bar previous/next chapter button visibility on hover and while disabled
+- (**Reader**) Fix jumping back to the first page on window resize
 
 ## [20260509.01] (r3147) - 2026-05-09
 

src/features/reader/viewer/hooks/useReaderPreserveScrollPosition.ts

@@ -8,7 +8,6 @@
 
 import type { RefObject } from 'react';
 import { useCallback, useEffect, useLayoutEffect, useRef } from 'react';
-import { useWindowEvent } from '@mantine/hooks';
 import type {
     IReaderSettingsManga,
     ReaderPageScaleMode,
@@ -73,7 +72,7 @@ const usePreserveOnWindowResize = (readingMode: ReadingMode, pageScaleMode: Read
             return;
         }
 
-        getReaderPagesStore().setPageToScrollToIndex(pageIndexOnResizeStartRef.current);
+        getReaderPagesStore().setPageToScrollToIndex(pageIndex);
 
         clearTimeout(activeResizeTimeoutRef.current);
         activeResizeTimeoutRef.current = setTimeout(() => {
@@ -82,7 +81,11 @@ const usePreserveOnWindowResize = (readingMode: ReadingMode, pageScaleMode: Read
         }, 50);
     }, [readingMode, pageScaleMode, pageIndex]);
 
-    useWindowEvent('resize', handleResize);
+    // TODO - revert back to mantines useWindowEvent hook once the issue of it using a stale callback can be fixed
+    useEffect(() => {
+        window.addEventListener('resize', handleResize);
+        return () => window.removeEventListener('resize', handleResize);
+    }, [handleResize]);
 };
 
 interface ScrollPreservationInfo {