Prototype auto fixable quick fixes

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

src/vs/workbench/api/node/extHost.protocol.ts

@@ -864,6 +864,7 @@ export interface CodeActionDto {
 	diagnostics?: IMarkerData[];
 	command?: modes.Command;
 	kind?: string;
+	canAutoApply?: boolean;
 }
 
 export interface ExtHostLanguageFeaturesShape {