Lockscreen Notifications: make dynamic width a device overlay setting

aslo removed duplicate file

Thanks to @David96
Lockscreen Notifications: add back dynamic width as an option (2/2)

Conflicts:
	res/xml/lockscreen_notifications.xml
	src/com/android/settings/mahdi/lsn/LockscreenNotifications.java
Settings: SlimRecents scaling + lefty mode (3/3) + traducciones al español