Nextcloud 28 compatibility

[max-nextcloud]

Right now circles.files.list.js tries to extend the file list prototype which does not exist anymore:

[skjnldsv]

For simplicity, I suggest we move that view to server as we already have many hardcoded circles vars there

• Step 1: add backend API in the existing ShareApiControler
• Step 2: add frontend service and view
  • https://github.com/nextcloud/server/blob/4e60b3c61e8e0699e341fb62f9f109d2525be5ab/apps/files_sharing/src/services/SharingService.ts
  • https://github.com/nextcloud/server/blob/4e60b3c61e8e0699e341fb62f9f109d2525be5ab/apps/files_sharing/src/views/shares.ts

[sorbaugh]

Aligned with @ArtificialOwl . This one can be closed.