✨ Hide visibility of check-ins for individual users

[VXGP]

This new feature allows you to prevent individual users from seeing specific check-ins. This can be customized for each check-in individually. Users added to a check-in via this feature's menu will not be able to see that check-in on the user's "En Route," "Dashboard," or "Profile" pages.

see #4242

[VXGP]

Ich sehe, dass der Test unter anderem wegen der Datenbank fehlschlägt. Bei meinem lokalen Test hat allerdings alles funktioniert. Wie ist dieses Problem zu lösen? MfG.

[MrKrisKrisu]

Did you push all the files? At least one file is missing, e.g., the migration.

[VXGP]

e.g., the migration.

Possibly I forgot it! I will look for the missing files as soon as I am back home. :)

[VXGP]

All files should now be uploaded. @MrKrisKrisu

[VXGP]

I see that a check is still failing, which is strange since everything starts normally in my local instance. What can I do? @MrKrisKrisu

[VXGP]

I've added the last missing file that I have forgotten, sorry!

[VXGP]

I think everything should be okay now. @MrKrisKrisu :)

[VXGP]

With the last commits I fixed all "quality standard" issues. @MrKrisKrisu

[MrKrisKrisu]

With the last commits I fixed all "quality standard" issues. @MrKrisKrisu

Unfortunately, I won't be able to review this PR over the holidays. Perhaps someone else here has time, or you will need to wait until next year.

[VXGP]

I won't be able to review this PR over the holidays

All good, I have no problem waiting. I wish you happy christmas days. ^^

[MrKrisKrisu]

Just dropping some screenshots of the current state here:

[MrKrisKrisu]

This is explicitly not a review yet, I just skimmed through it, but here are a few comments:

1. In my opinion the UI is a bit toooo overloaded with this big component at the bottom. Even before, I thought it was chaotic, but now even more so. It takes up too much space.

2. Did you test your PR before requesting a review? The feature don't work for me at some points.
   -> for example: The model structure doesn't match the migration, so we cannot save to the table of hidden users. The Model try to save an uuid (which is good!) and the migration creates an id with unsigned big integer.

[VXGP]

Thank you for informing me about the UUID/ID issue, I will fix it as soon as possible. Of course I test the PR before submit it, but on my local machine the testing possibilities are slightly limited.

I will try to make the UI more minimalistic and to integrate it better in the empty space.

[VXGP]

Hey @MrKrisKrisu, I think now the PR is ready for review again.

[VXGP]

With the last commit I fixed the missing spaces at line 75 in "DashboardController.php". Now all "quality standards" should have been met. @MrKrisKrisu