'machine-overridable' can be set and read in user settings

[aeschli]

Verifying #73985

• Create a machine-overridable settings

e.g. 'testFoo.test-machine-overridable' from ext-machinescope-test-0.0.4.vsix.zip

• in a normal (non-remote window) set it in user and workspace settings
  -> no errors (as expected)
• open the folder in a remote window
  -> no errors (expect error in user settings)

The UI only offers the setting in machine and workspace, but the editor schema seems to be lacking the schema.

• clear workspace setting and runTest Foo Setting command. You can see that the value is read from the user settings.

[aeschli]

ext-machinescope-test-0.0.4.vsix.zip

[sandy081]

Good catch @aeschli. There is a bug that if the setting is already overridden in user settings, it is being read because defaults are getting registered lately. It needs reprocessing after defaults are registered.

[sandy081]

Also fixed the schemas to show the suggestions correctly.