Play Store Policy Update: Wear OS Tiles should prompt user to sign in if they are not yet

[dshokouhi]

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

Play Store policy updates that take effect in August

https://developer.android.com/docs/quality-guidelines/wear-app-quality#upcoming

If you include a tile with your app and the user is signed out, prompt the user to sign in when they open the tile.

Describe the solution you'd like

Our tiles themselves do not account for a user being signed in. We do have default states for them but that is not good enough it should be part of the tile itself. The Assist tile does check in its activity but based on the above description it should be on the tile itself.

Describe alternatives you've considered, if any

Additional context