On iOS 14 execution of JIT fails when the debugger is not attached, and debug Flutter apps (including host add-to-app applications) crash on launch when manually launched from the home screen on a physical device.

Instead of crashing, give the user a message with a link to documentation.

Suggestion from @chinmaygarde in JIT crash discussion doc:

We could toss up a UI built with UIKit that shows why the app failed to launch as well as the workaround and a link to other documentation.

Suggestion from @mraleph:

I think instead of just showing a warning into the log we should be showing message box explaining that Flutter application built in debug mode can only be launched through flutter run.

#60657 (comment)