fix: handle absence of "properties" in schema

[dmitry-stepanenko]

I've encountered an issue with some old repository. It contained a schematics, that didn't have properties field specified in schema.json. Schematics itself was working properly, but nx-console plugin failed to even launch. This PR adds handling of a case there's no properties field in schema.

@vsavkin would it be reasonable to also make properties field optional in the Schema interface in Nx repo here?

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✅ Successfully ran 3 targets

• nx run-many --all --parallel --target=build --max-parallel=3
• nx run-many --all --parallel --target=test --max-parallel=3
• nx run-many --all --parallel --target=lint --max-parallel=3

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[Cammisuli]

Thanks for the PR! Just out of curiosity, what version was that old workspace?

[dmitry-stepanenko]

Thanks for the PR! Just out of curiosity, what version was that old workspace?

@Cammisuli that repo was using Angular and nx v11, but the issue is easily reproducible on latest versions