The danger confirm button used a hardcoded text-white class which failed the
admin theme source audit and could render unreadable against custom admin
themes. Switch to the semantic text-destructive-foreground token.
Also add media-grid.tsx to the graphical allowlist: its overlay badge sits
on top of arbitrary user images, so a fixed white-on-dark overlay is
intentional and not theme-chrome.
Restores the full test suite to green (303/303).
openhands
remco
Simo