TaskBar updates

[matejdro]

This PR adds 3 new functionalities to the Taskbar:

Option to also show Taskbar on the Home Screen

This is especially useful with the 3rd party launchers, where taskbar disappears on opening Launcher and does not reappear.

Option to keep "All apps" button when using PixelXpert recents

Currently, PixelXpert recents implementation removed those buttons. This adds a toggle that can bring them back.

I've noticed there was some similar code for this already in, but commented out. So I reused large chunk of it.

Option to enable native recents implementation in the Pixel Launcher

It seems like with recent updates, (I think 15 QPR1?), Pixel Launcher now has native recents functionality, but it is hidden. New toggle is added to enable it. To reduce confusion, I have renamed previous recents button to "PixelXpert recents".

[matejdro]

Hm, I have noticed that taskbar on home screen option is not that reliable. I will try to make it better shortly, but I would appreciate any tips (I'm very new to this LSposed thing).

EDIT: This will take a bit longer than I expected as I have some other things to do first. If desired, I can remove that commit and merge other two in until then.

[siavash79]

Thanks

[siavash79]

one point though: StateControllerClass: when we hook to the method to set the result directly without caring about the current result (and if nothing special happens during the method run), we don't need to hook to "after" at all. we can hook to "before" instead and save the cpu some tiny run time

[matejdro]

Thanks, will check this and fix in the next PR.