Add an option to disable typescript validation for VS Code extension

[vrabe]

Body

Summary

Add an option to disable TypeScript validation for VS Code extension.

Background & Motivation

Currently, Astro VS Code extension reports TypeScript problems in *.astro files. But some TypeScript validation rules are not applicable for JavaScript code. It's good for JavaScript coders to have an option to disable TypeScript validation so that they don't have to ignore false-positive problems show in VS Code.

Although there is a workaround: // @ts-nocheck, it's unrealistic and bad-looking to have // @ts-nocheck in all *.astro files contain JavaScript code.

There was a discussion about this: withastro/language-tools#604.

Goals

• Have an option on Astro VS Code extension which users can disable TypeScript validation.

Example

N/A

[Princesseuh]

You can use typescript.validate to disable TypeScript validation in the editor, fwiw.

[vrabe]

It works! Thanks.