bug: theme generator is not saving changes if new theme contains `-`

[kbegiedza]

Reproduction URL (Required)

https://daisyui.com/theme-generator

What version of daisyUI are you using?

v5.5.14

Which browsers are you seeing the problem on?

Edge

Describe your issue

Adding - to name breaks theme-generator

result.mp4

[github-actions]

Thank you @kbegiedza for reporting issues. It helps daisyUI a lot 💚
I'll be working on issues one by one. I will help with this one as soon as a I find a solution.
In the meantime providing more details and reproduction links would be helpful.