Hi team!

First of all, I have to say thank you for such a good firmware for this little device, this is just great!

To improve navigation, I've thought of a possible rework for the long-press skip controls.

Now, the corresponding setting is called Long-press Chapter Skip and the possible values are ON/OFF. Would it be handy if this setting is called Long-press Skip and toggle between 5 pages/10 pages/15 pages/Chapter/OFF?

I guess fully fixing KOReader Sync integration might be harder, but apart from this specific use case, having a shortcut to quickly jump a specific number of pages at once might become handy for everybody.