[Feature] Include external library sizes to user storage stats

[liveifsh]

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request.

• Yes

The feature

External libraries have an owner, so why not include their size to their owner's disk usage stats and total disk usage stats on "server stats" screen?

Immich external library with more then 50k entries shown as 2mb usage

Many external libraries and their sizes

Platform

• Server
• Web
• Mobile