add Kurdish language to Matomo #17934

It is around 5% completeness with the important plugins (Dashboard, Login) being nearly complete, which I think is enough to add it as a choice in Matomo.

Review

• [ ] Functional review done
• [ ] Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done
• [ ] Wording review done
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed

Guess this will require some updates in the test files before merging...

I think we should do this last, I just wanted to create the PR so we don't forget