Plan to update to track TypeScript 7.0

This extension currently tracks the currently latest @next build published under TypeScript. Right now that's still TS 6.0. However the real nightlies are now on the TypeScript 7.0 (the native preview). The native preview is a larger change than the typical nightly since it's a complete re-write

Let's help users migrate over to use the native preview extension so they can use the real nighties again. Current plan (in date order):

• Add a prompt to install the native preview extension if you have this nightly extension installed (shipped in VS Code 1.119)

• Add the native preview extension as a dependency of this extension so current users get it installed and activated

• Coordinate with the TS team about the future of this extension. Should we:

  • Update to track TS 7.0+ nightlies and deprecate the native preview?
  • Deprecate this extension and make the native preview extension the new nightly?

Start with the unchecked dependency item and confirm how the prompt shipped in VS Code 1.119 relates to the extension’s current @next setup. Then coordinate with the TypeScript team on the two listed future paths; done means the native preview dependency is added and activated for current users, or the extension’s future and deprecation path is documented and agreed.