Also too the opportunity to rewrite the build script since there was a
change in the build steps (mainly how the product JSON is inserted) and
to get the build changes out of the patch. It also no longer relies on
external caching (we'll want to do this within CI instead).

- Copy old icon back into repository
- Update path to icon from manifest file
- Add link metadata tag for iOS PWA icon to workbench.html
- Add link metadata tag for iOS PWA icon to login page

See #948. Only applies if code-server already tried to load a
language.

Should allow manual installation of bracket pair colorizer 2: #544.

We will clean it up on our end if necessary. This allows reconnections
after any length of time.

Fixes #976.

This is so we can try out the web worker extension host.

Fixes #929.

It gets the web URL for the file yet uses the file service to load it,
so having a sub-path causes it not to be found on disk (the sub-path
obviously only means anything for the web server and isn't on disk).

Fixes #898.

Fixes #909.

Fixes #901.

- Implement the localization service.
- Use the proper build process which generates the require JSON files.
- Implement getting the locale and language configuration.

- Don't use "any" for the API type.
- Remove everything from the Coder API that can eventually be done
  through the VS Code API.
- Move the event emission to our own client to minimize patching.