Ignore reading direction for vertical progress bar

The page change handling of the progress bar was inverted while RTL was the set readers reading direction.
However, this is only relevant for the horizontal progress bar

src/modules/reader/components/overlay/progress-bar/variants/MobileReaderProgressBar.tsx

@@ -182,6 +182,7 @@ const BaseMobileReaderProgressBar = ({
                         )}
                     </IconButton>
                     <ReaderProgressBar
+                        direction={finalReaderDirection}
                         progressBarPosition={finalProgressBarPosition}
                         fullSegmentClicks={false}
                         createProgressBarSlot={useCallback(