feat: Worker settings

[bmingles]

Enterprise settings now support an expanded config:

• Optional server label
• Experimental worker config - an object of optional worker settings that will drive PQ creation

Also fixed a small json schema bug for community settings that was breaking intellisense in settings.json

Testing
Simple config should still work:

"deephaven.enterpriseServers": [
  https://dev-vplus.int.illumon.com:8123/
]

Expanded config should drive server label in the server tree and / or worker creation settings:

"deephaven.enterpriseServers": [
  {
    "url": "https://dev-vplus.int.illumon.com:8123/",
    "label": "San Luis", // optional label
    "experimentalWorkerConfig": {
      // custom heap size
      "heapSize": 0.5
    }
  },
]

[github-actions]

End-to-end Test Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Pending ⏳	Other ❓	Flaky 🍂	Duration ⏱️
6	6	0	0	0	0	0	05:32:00

A ctrf plugin

Detailed Test Results

Name	Status	ms	Flaky 🍂
should default to the correct settings	passed ✅	2221
should return custom settings: Empty configs	passed ✅	329
should return custom settings: Populated configs	passed ✅	139
should be able to load VSCode	passed ✅	900
should only be visible when a supported file type is active: test.groovy	passed ✅	3646
should only be visible when a supported file type is active: test.py	passed ✅	1481

A ctrf plugin

Failed Test Summary

No failed tests ✨

Flaky Test Summary

No flaky tests detected. ✨