Feature/reader skip duplicate chapters (#262)

* Skip duplicate chapters in the Reader

* Debounce "end of page" handling in the reader

* Update keyboard event listener

In case the "go" function changed, the listeners have to be updated

src/components/reader/pager/PagedPager.tsx

@@ -85,7 +85,7 @@ export default function PagedReader(props: IReaderProps) {
             document.removeEventListener('keydown', keyboardControl);
             selfRef.current?.removeEventListener('click', clickControl);
         };
-    }, [selfRef, curPage, settings.readerType]);
+    }, [selfRef, curPage, settings.readerType, prevChapter, nextChapter]);
 
     useEffect(() => {
         // Delay scrolling to next cycle