feat: Add problem code actions

[adalinesimonian]

Resolves #39, Resolves #185

• Adds:
  • Code action to disable a rule for a specific line
  • Code action to disable a rule for an entire file
  • Code action to show documentation for a rule
• Fixes a bug where configuration would not update when edited.
• Makes it so that if the extension fails to start the language server or to send events, the errors are displayed to the user instead of silently failing.
• Adds the DidResetConfiguration notification to the server and the corresponding API event to the extension to allow end-to-end tests to know when the configuration has been updated in the extension after editing .vscode/settings.json in a test.

[adalinesimonian]

Unit tests won't pass just yet, changes are required. End-to-end tests pass, but no e2e test has been added just yet for this new functionality.