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/util/readerSettings.ts

@@ -16,6 +16,7 @@ export const getDefaultSettings = (forceUndefined: boolean = false) =>
         showPageNumber: forceUndefined ? undefined : true,
         continuesPageGap: forceUndefined ? undefined : false,
         loadNextOnEnding: forceUndefined ? undefined : false,
+        skipDupChapters: forceUndefined ? undefined : true,
         readerType: forceUndefined ? undefined : 'ContinuesVertical',
     } as IReaderSettings);