feat: disable debug widget if unsupported by board

[kittaakos]

Motivation

Improve communication of no debugger support when accessed via the activity bar

gh-14.mp4

Change description

• Disable the debug widget if the debugging is unsupported by the selected board + programmer + config options triplet. If debugging is unsupported, the message is the same as in the toolbar.
• Remove the 'Add configuration...' select option from the debug widget.

Other information

Closes #14

Reviewer checklist

• PR addresses a single concern.
• The PR has no duplicates (please search among the Pull Requests before creating one)
• PR title and description are properly filled.
• Docs have been added / updated (for bug fixes / features)

[pillo79]

@kittaakos Love this, especially the fact that there's a clear indication of the issue preventing the debug from being active! 👍 🚀
Just out of curiosity, what does that text say in the case of the Nano ESP32 with the wrong "USB mode"?

[umbynos]

Awesome!

[kittaakos]

Just out of curiosity, what does that text say in the case of the Nano ESP32 with the wrong "USB mode"?

That's a good point. It just says that Debugging is not supported by 'Arduino Nano ESP32'. The CLI cannot provide more information when asked via the arduino-cli debug check command. It only tells whether it's supported or not. IDE2 says to the user what the CLI says.

[kittaakos]

Follow up: #2345