What does this MR do?

This should be the same as Improve URL validation (!1155 - merged) but rebased on stable, to release as part of 2025.4.4

Contribution Guidelines

By submitting this merge request, you agree to follow our Contribution Guidelines

I agree to follow this project's Contribution Guidelines
I have made sure to test this merge request

Co-authored-by: Hazelnoot acomputerdog@gmail.com