Make Terraform extension available in "browser mode"

Problem Statement

GitHub employees and other users use VS Code in the browser for various reasons. This extension currently isn’t available for them.

Example https://github.dev/hashicorp/terraform-guides

Expected User Experience

Extension is available to assist users in editing Terraform code in their browser, the same way as in desktop VS Code.

For example at https://vscode.dev/ or https://github.dev/

Proposal

https://code.visualstudio.com/docs/remote/codespaces#_why-is-an-extension-not-installable-in-the-browser

There is some documentation here: https://code.visualstudio.com/api/extension-guides/web-extensions

We could initially provide just a minimal extension for the web - e.g. with syntax highlighting only.

• Investigate impact on telemetry logic
• Investigate replacing of esbuild with webpack
• Create browser entrypoint and link it from package.json per docs, e.g. "browser": "./dist/web/extension.js",

Longer-term we’d need to find out if there’s any way or benefit from running LS in the browser - either via WASM or GopherJS.

[jpogran]

I am exceedingly happy to announce, that as of v2.25.0, we now work in github.dev and vscode.dev in the browser!

[radeksimko]

As mentioned, we provide a basic web version of the extension from v2.25.0, therefore I am going to close this issue. I have however created a separate one in https://github.com/hashicorp/vscode-terraform/issues/1287 to track possible future enhancements in this area. Comments are welcomed there.