CrateFeature: add popup to avoid accidental remove of Crate

[fatihemreyildiz]

I have fixed the accidental remove issue for crates as well by adding a popup just like I did for the playlists.

I know making popups everywhere is not a proper solution for accidental removal issues because these popups are affecting usability a lot. There are better solutions for that like discussed on the other Pull request; redo/undo button, check-boxes that we can change on the Options>Preferences “Warn before deleting a playlist\crate” or a checkbox like “Don’t show this again”, etc.

After adding this popup for the playlists, a few people wanted it for crates too. Therefore I did it. I want to contribute more so any feedback will be good for me :)

In my opinion for now popups can be our problem solver, then later on better solution can be implemented.

[daschuer]

Thank you.
At least this is a good intermediate solution and puts it into an equal state with playlists.
@ronso0 What do you think? merge?

[ronso0]

Nothing to add from my side.
Good to have a good intermediate solution for both playlists and crates.

[daschuer]

Thanks!