Fix Imprint/Privacy page breaking the app

[Arnei]

Opening one of the two about pages would crash the admin ui. This should fix that.

How to test this

The about pages need to be enabled in Opencast https://github.com/opencast/opencast/blob/b5e66efac8dd8d182eecab302879d41d24e55d1c/etc/org.opencastproject.organization-mh_default_org.cfg#L139. After enabling them, you should find links to them in the footer.

[github-actions]

Use docker or podman to test this pull request locally.

Run test server using develop.opencast.org as backend:

podman run --rm -it -p 127.0.0.1:3000:3000 ghcr.io/opencast/admin-interface:pr-1603

Specify a different backend like stable.opencast.org:

podman run --rm -it -p 127.0.0.1:3000:3000 -e PROXY_TARGET=https://stable.opencast.org ghcr.io/opencast/admin-interface:pr-1603

It may take a few seconds for the interface to spin up.
It will then be available at http://127.0.0.1:3000.
For more options you can pass on to the proxy, take a look at the README.md.

[github-actions]

This pull request is deployed at test.admin-interface.opencast.org/1603/2026-05-08_11-01-29/ .
It might take a few minutes for it to become available.