[Feature] Link to login with app

[bo0tzz]

I have searched the existing feature requests to make sure this is not a duplicate request.

• Yes

The feature

For less tech-savvy users, needing to fill in the instance URL in the app might be a challenge. The server should provide an endpoint that opens the mobile app with the instance URL prefilled, so that users can be prompted to login by just sending them a link to click.

Platform

• Server
• Web
• Mobile