2.4.0 released in stable channel

Changelog:
Added:
- Option to hide network traffic arrows (Statusbar)
- Separate Wifi/Cell QS tiles for A13 (Quick Settings)
- Option to enable light/dark theme on Power Menu (Theming)
- Option to remove "all apps" icon from taskbar (Navigation)
- Sleep action (Navbar gestures)
- Option to configure heads-up notification duration (Misc)
- Italian translation (by @xxz3)

Changed:
- Separated double tap sleep of lockscreen and statusbar / Disabled double tap to sleep on QS panel

... And bugfixes