Misleading message in the moodle app

[cmoehl]

Issue in the Moodle App (LMS 4.4.8 & 4.5.4 and App 4.5.0)

If a learning map is not set to "show on course page", the standard icon for activities not supported in the app is displayed, which is fine.

If a learning map is set to "show on course page", there is a message displayed in the app, that the learning map is loading. However it will never appear. Therefore, I suggest to display the icon mentioned above instead of the message indicating that it is loading.

[sh-csg]

This will be resolved by #157