Update azd figspec in `microsoft/vscode` and filesize optimizations

[JeffreyCA]

Need to update https://github.com/microsoft/vscode/blob/main/extensions/terminal-suggest/src/completions/azd.ts, ideally after these new extensions are published.

We may want to also think about trimming the figspec a bit. The azd spec is currently the 3rd largest, at:

Rank	File	Size (bytes)
1	git.ts	435,301
2	docker.ts	155,545
3	azd.ts	92,887
4	gh.ts	86,193
5	ruff.ts	73,066

For example we could potentially omit all the azd help subcommands from the spec and just focus on the main command completions.