[html] support imports in embedded JavaScript

[Krutsch]

• VSCode Version: 1.52.1
• OS Version: Windows 10.0.19042.685

Steps to Reproduce:

1. Create a HTML File with <script type="module">...</script>
2. Add // @ts-check and import any npm package
3. No intellisense

Does this issue occur when all extensions are disabled?: Yes

If we would do the same steps with a .js file, IntelliSense will work:

It is not working in .html however:

Error: Cannot find module 'hydro-js'. Did you mean to set the 'moduleResolution' option to 'node', or to add aliases to the 'paths' option?javascript

Tried troubleshooting:

1. Created a jsconfig.json file
2. Tried the above error suggestions.

[vscodebot[bot]]

(Experimental duplicate detection) Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• HTML Intellisense NOT working as expected. (#111952)
• Problem with HTML syntax highlighter (#111394)
• [html] Support SCSS in HTML with