feat(dashmate): check port reachability on setup

[pshenmic]

Issue being fixed or feature implemented

What was done?

How Has This Been Tested?

Breaking Changes

Checklist:

• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added or updated relevant unit/integration/functional/e2e tests
• [ ] I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• [ ] I have assigned this pull request to a milestone

[shumkov]

@pshenmic please reopen PR if you are going to finish it