Admin UI v2.5.0

What's Changed

New Features

• Use a dialog instead of a separate page for the creation of items by @stamenione in #511
• Breadcrumbs by @stamenione in #500

Bug Fixes

• Tier quotas are not deleted after deleting tier quota definitions by @NikolaVetnic in #516

Other Changes

• Improve horizontal scrolling and column sizing in tables by @stamenione in #508