fix(federation): Don't load the addressbook when resolving a cloud ID

[nickvergessen]

Instead we delay the lookup of the display name until it is actually used

Summary

This saves the addressbook setup in all usages of Talk where we just resolve the cloud id to properly get the object with split user ID and server URL. The display name is never used in talk as we cache it into the comments and attendees table.
So this saves 5+ queries in all cases that involve federated users.

Display name still properly loads in:

• File list (incoming):
  
• Right sidebar owner chip (incoming):
  
• Notification (incoming):
  
• Share list (outgoing):
  

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[nickvergessen]

/backport to stable31

[nickvergessen]

/backport to stable30