Set desktop wallpaper activity `avoid move to front`

* Launching Desktop wallpaper activity alongside other apps would reset their `mCurrentLaunchCanTurnScreenOn` flag.
* Launch options flag added to prevent desktop wallpaper activity stack from moving to front

More info: go/pending-intent-resets-turn-screen-on-flag

Bug: 343450217
Test: atest CtsWindowManagerDeviceActivity:ActivityVisibilityTests
Flag: ACONFIG com.android.window.flags.enable_desktop_windowing_wallpaper_activity DEVELOPMENT
Change-Id: I2044185bb259eab5606bd22f86858ad5e708d01b