Rewrite dashboard with modern framework

[mtrezza]

New Feature / Enhancement Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am not just asking a question.
• [x] I have searched through existing issues.

Issue

We are spending quite some time on basic, fundamental bugs related to UI style, button size, scrollbars. And yet the dashboard feels and in some regards is outdated.

Enhancement

Completely rewrite dashboard using a modern UI framework where things like these come OOTB:

• UI controls don't need to be individually customized and styled
• dark mode
• responsive design
• touch UI compatibility
• UI testing compatibility

[mtrezza]

Sounds great, sure, please feel free to go ahead and open a PR. Curious to hear what others here think.