fix custom commands in dev mode

[shumailxyz]

What this PR does / why we need it:

• Fixes custom commands not working on first run in dev mode.
• Also uses command artifact for version command so it is supported in dev mode and shows up in help.

Which issue(s) this PR fixes:

Fixes #4647

Special notes for your reviewer:
The second issue with custom gardenCommands reported in #4647 will be address separately. Tracking that with #4668

[vvagaytsev]

Just a nit on the commit message.

fix: make a copy of projectRoots instead of using reference

This will appear as "make a copy of projectRoots instead of using reference" in the list of bug fixes in the release notes. This sounds more like implementation details. We should consider using a brief summary addressing the issue as a commit header. And the details can go to the message body.

Something like this:

fix: allow (or enable/fix missing/whatever is the best here :)) custom commands in the dev console

Make a defensive copy of `projectRoots` instead of using a reference when memorizing old values before the reload.

[edvald]

One comment, rest looks solid. Good catch on the projectRoots thing, that's a subtle one.

[vvagaytsev]

A minor nit. It looks like commits bd0e6ce and 9117243 can be squashed.

I'd also consider it as an improvement instead of a bug fix :)

[shumailxyz]

@vvagaytsev Thanks. Updated it to reflect improvement and combined both commits into one. Had to force push though.

[vvagaytsev]

Great job, thank you! 🚀

[shumailxyz]

@vvagaytsev Many thanks for pairing on this 🙌