Fix #67011

Fixes #66944: Tokenize viewport with debouncing after scrolling and when the tokenization support has changed

Part of #62110

Use the more generic name as suggested in https://github.com/Dart-Code/Dart-Code/issues/1393. This makes the intent of the field more clear and also allows us to extend the concept of preferred code actions to refactorings and other classes of code actions

Experimentally also allows a `preferred` value for `apply` when configuring code aciton keyboard shortcuts. This applies the preferred code action returned from the list of code actions returned

Part of #62110

- Adds a new field `canAutoApply` to code actions. This field indicates that a code action can be applied without additional user input. For quick fixes, this should be set if the fix properly addresses the error

- Enable auto fixes for TS spelling errors

- Added a `editor.action.autoFix` command to triggers auto fixes at the current cursor position

This reverts commit 7b375fcb.

Reapplies 4a38520d with a fix for #66202

Fixes #66202

This reverts commit 4a38520d.

For #33413

Adds the active `SignatureHelp` object (along with the active signature) to the `SignatureHelpContext`.

Calling `fire` with zero arguments results in the emitter firing with `undefined`. This is often not expected or desired. It should be explicit that the emitter is fired with undefined

Fixes #64216