Toggle favorites

[kulmann]

Initial Checklist

• I understand this is a user story and questions should be posted in the Community Discussions
• I searched issues and couldn’t find anything (or linked relevant results below)

User Story

• As a user, I want to toggle favorites so that I can manage my files

User Value

Favorites

Acceptance Criteria

• the new endpoints for starring / unstarring files are being used, see Implement favorites opencloud#2454