UX fixes for QR code scanner QS tile

Bug: 254277602
It included changing the state of the tile to INACTIVE to remove the highlight which made it seem that the scanner was always on.

Bug: 254279069
It included changing the title of the QS tile according to UX specifications.

Change-Id: Ie776b0ab70349060e79facacc69629d5411845c8
3 files changed