Two follow-ups to PR #372 (external-URL toggle for imprint /
privacy CMS pages):
1. **i18n.** PR #372 added 6 new `cms.*` keys to the en + de
locales but the project ships 5 locales total. Adds the missing
nl / pt / ru translations so the admin CMS page renders in the
active language for those users instead of falling back to
English literals next to the German/Dutch/Portuguese/Russian
surrounding strings.
2. **API shape.** `publicCMS.js` returned `external_url`
unconditionally — even when `use_external_url` is false the URL
value was still emitted in the public response. The frontend
correctly gated on both flags so it worked, but the API surface
was leaking a value the admin had explicitly disabled. The
value still lives in the DB (so the toggle can be flipped back
on without losing it), but the public endpoint now returns
`null` whenever the toggle is off.
Note: kept the existing `logo_url` shape unchanged. Its semantics
are different — null means "fall back to global branding" and
consumers rely on always having the field, so emitting it
unconditionally is intentional there.
No frontend change needed: both `GalleryLayout` and `LegalPage`
already gate on `use_external_url && external_url`, so the
short-circuit handles `external_url: null` correctly.
Paul Nothaft
bce5c1f725