*Bug description*
The help icon isn't centered in the button in Image Builder's header. (see screenshot)

<img width="257" height="78" alt="Image" src="https://github.com/user-attachments/assets/db2c6abe-67f7-44ec-a241-51b9c6b08e93" />

The culprit is this custom CSS: https://github.com/osbuild/image-builder-frontend/blob/main/src/Components/sharedComponents/ImageBuilderHeader.scss#L6

Upon removing it, the icon is centered again.

*Reproduction steps*
Steps to reproduce the behavior:
1. Go to the service and look at the icon on the LandingPage.

*Expected behavior*
The icon should be centered.

GitHub Issue: https://github.com/osbuild/image-builder-frontend/issues/3913