[Feature] Favourite images in public links

I have searched the existing feature requests to make sure this is not a duplicate request.

• Yes

The feature

It would be very beneficial for me if Immich would allow favouriting images from a public link.

Background: my wife is starting to build up a professional photographing business, and would need a tool for client proofing.
Over all Immich seems to be a great tool, and I would really appreciate it, if the usefulness could be expanded by this.

I am aware, that this request is also part of the much larger request #10443 .
However, since allowing favouriting is a much smaller feature, I thought that it is worth it to open a separate request.

Platform

• Server
• Web
• Mobile