[v2] Add full v2 support

[mark-wiemer]

AHK v2 full support in pre-release!

🧪 This issue is now resolved in a pre-release, feedback is very welcome!

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Add full v2 support: IntelliSense, debugging, and formatting.

• [v2] Add formatting support #381
• [v2] Add snippets #382
• [v2] Can't debug from VS Code debug menu #385

Additional issues have been reported but are not required to close this issue. See all AHK v2 issues. See also:

• AHK V1 files language mode is always set to AutoHotkeyV2 #396

[mark-wiemer]

The current plan is to incorporate thqby's extension as a submodule :)

[mark-wiemer]

To clarify, I'm using my fork of thqby's extension. My fork has added tests and I have full control over fixes going forward, plus I can still pull in thqby's changes as well. I do plan to continue opening PRs against thqby's extension, but updating my own fork will always be faster.

[mark-wiemer]

Moving back to Node 20 until DefinitelyTyped/DefinitelyTyped#70320 is resolved