[dashy] Bump and support v3.0.0

[SolidSly]

Is your feature request related to a problem?

Yes, Currently, Dashy integrated a build system that breaks often. The author knows it and decided to provide a new version v3.0.0 that should fix this issue mainly.

Describe the solution you'd like

The solution support Dashy v3.0 and its breaking changes.

Describe alternatives you've considered

Manually deployment is working as intended but using the TrueCharts charts in UI make more sense on TrueNAS Scale.

Additional context

I will submit a PR soon.

I've read and agree with the following

• [X] I've checked all open and closed issues and my request is not there.
• [X] I've checked all open and closed pull requests and my request is not there.

[truecharts-admin]

This issue is locked to prevent necro-posting on closed issues. Please create a new issue or contact staff on discord of the problem persists