Add separate launcher icon for Assist on the main app

**Is your feature request related to a problem? Please describe.**

I can't start HA Assist from Samsung Galaxy phone's lock screen (mine is Galaxy S22, Android 14).

**Describe the solution you'd like**

If there would be a normal Assist app, I could add it into Samsung Galaxy phone's lock screen as an app shortcut and start Assist that way from lock screen.
Any other solution would be ok too :)

**Describe alternatives you've considered, if any**

There are currently three ways to add Assist into Android's home screen: dynamic shortcut, pinned shortcut and adding Assist from widget launcher (two first with "?conversation=1").
I have tried all three approaches and it is not possible to add any of these three approaches into Samsung Galaxy S22's (Android 14) lockscreen as a shortcut (meaning, Assist can't be run from Samsung's lock screen).

**Additional context**