Some pages and methods don't work after creating >=16k User and ImageAnnotationLabels

[lehecht]

Multiple pages and functions do not work any more after creating more than 16000 User and ImageAnnotationLabels. This bug is caused by PHP memory exhaustion. It isn't logged, but can be observed when using docker compose logs -f.

(Incomplete) list of pages and functions that are affected:

• Admin page
• Add member to Project
• Redirect to project view (after successfully creating one)

[mzur]

When working on this issue, first make a complete list of all views that don't work any more (list view controllers with artisan route:list). The API is more difficult but I think we can skip this for now and wait for the errors to pop up in real use.