Fix the Roles view unaligned User Dialog

[TIKaushik]

No description provided.

[github-actions]

Hi @TIKaushik
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[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/opencast-admin-interface:pr-1315

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/opencast-admin-interface:pr-1315

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/1315/2025-05-28_08-03-18/ .
It might take a few minutes for it to become available.

[Arnei]

Duplicate of #1280, probably? Please provide a proper description so we can easily know what this is about.

If it really is a duplicate of #1280, please coordinate with the creator of that PR on how to move forward.

[Arnei]

Simple and entirely reasonable fix (given our messy CSS). Will merge this in favor of #1280, as it is a more straightforward fix.