Albums: Unshare public link, hide Download button

[jwefers]

When i copy a public link and hand it to people, i want to undo that, i.e. invalidate that public link.

Also, i want to "prohibit" downloading by not showing the download button to at least throw off non tech-savvy family members from sharing around photos i entrust them with via a Memories album.

Describe the solution you'd like
In the sharing popup of an Album, it should be visible that a public link has been created/copied before, and have a button to un-share/invalidate that link. And a checkbox for "Downloads allowed". Exactly like sharing folders in the rest of Nextcloud behaves

Describe alternatives you've considered
Using folders instead of albums, but that throws off the internal structure we use, when we just want to share a couple of specific photos with non-NC family users

[alesrosina]

I think there should be also a menu item for a list of all shared albums, similar to shared files in Files app.

Otherwise it's hard to keep track of all the shared albums, if you have many.

PS: @jwefers if you open a share dialog, this means there was no shares yet:

and this means it was already shared.

Clicking on a X will remove the link.

[meichthys]

I think there should be also a menu item for a list of all shared albums, similar to shared files in Files app.

This is being tracked here: #787