MVC: blank UI space

[sopex]

Important notices

Before you submit a pull request, we ask you kindly to acknowledge the following:

• I have read the contributing guidelines at https://github.com/opnsense/core/blob/master/CONTRIBUTING.md
• I opened an issue first for non-trivial changes and linked it below.
• AI tools were used to create at least part of the code submitted herewith.

Closes: #10150

[fichtner]

Screenshots please, hard to gauge from here

[sopex]

See the ones in the issue for the before