- constrain settings panels to a 680px reading column so fields no longer
stretch edge-to-edge on wide screens (main "looks bad" cause)
- fix the app-password "Erstellen" button rendering centred below the input:
.app-pw-create inherited flex-direction:column from .form-group; force row so
it sits inline to the right of the field
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>