Settings: update French translations
Settings: update German translations
Settings: update Spanish translations thanks to @SensesXda
Button settings: add enabled/disabled summaries for all navigation options

also if slim pie is enabled, disable pa pie and vice versa
[2/2] Immersive mode: options to disable navbar or statusbar gesture

works for both SystemGesturesPointerEventListener and EdgeGestureService

* 0 - both enabled (default)
* 1 - disable navbar gesture
* 2 - disable statusbar gesture
Settings: Update button backlight summary always.

Change-Id: I066976f84522754d552e82ff1510d371a9314f9f
Disable forced navbar: reworked

also move 'Block gesture touch events' to immersive category
Updated Italian traslations

Updated Italian traslations
Settings: Updated german translations