Add "for this session only" when multiple launchers are installed on the devices
Summary
This feature concerns
Description
Who will use the new feature? Any user who would experiments a launcher different from Bliss
What is the target of the new feature for this user? To avoid to answer again and again "once" when he/her experiments a different launcher
Why this user would like to use this feature? Because now only two options are possible: once and forever
Examples
## Reflection
Mockups
Diagrams
Validation
Edited by Ottorino