Add a user collection

[razzeee]

This allows you to add apps to your personal collection or remove them.

We should also list the collection in the users private profile.

I'm not too sure about the naming collection, but I don't like bookmark either.

The frontend is pretty rought/unfinished. The backend works, as far as I can tell, but not a python crack.

[JakobDev]

If we are adding this, I think it would be a good idea, to allow multiple lists which custom Names, so a User could maybe have a Development Tools and a Games list.

[razzeee]

I also thought about public lists etc, but that's not the clear design I would want.

I think a collection is different from a custom list. Mostly taken Inspiration from pages like Trakt.

[razzeee]

Would close #1944

[Bekon241]

If we are adding this, I think it would be a good idea, to allow multiple lists which custom Names, so a User could maybe have a Development Tools and a Games list.

Hi, or just one list but you can add text box as headline with your own discritpion example. Office, Audio, Video, Games, Note, Security, Books, Documents, Arts... etc.

[DatuStram]

Hi !

I just wanted to know whether this PR would be marked for review and further processed in the foreseeable future?

I know this question could be construed as entitlement but it's really not, I'm just hoping such a useful (and pretty common) feature will make its way to the best app store for Linux 😄