This makes the file tree work.

I didn't like how the inner objects accessed parent objects, so I
restructured all that.

Reading, watching, saving, etc all seem to work now.

Add failed authentication attempt logger

Add `use-credentials` to fetch manifest with cookies

Fix service worker path

Fix formatting issue

Fix typos in wget url

When `isAuthed()` is called and the password cookie is not what we
expected, the failed login attempt is logged with the provided password,
remote address and user agent.

To allow for logging failed attempts with a reverse proxy, the
`--trust-proxy` argument has been added to trust the `X-Forwarded-For`
header. This implementation of an `X-Forwarded-For` parser uses the last
value in the list, therefore only trusting the nearest proxy.

Co-Authored-By: NIan Reinhart Geiser <geiseri@geekcentral.pub>

Co-Authored-By: NIan Reinhart Geiser <geiseri@geekcentral.pub>

Update READE to add know issue for golang debug

I run code-server behind an authenticating Kubernetes Ingress which sets a cookie after a successful login is performed. Since this cookie is not set when fetching the manifest, the fetch fails and gets redirected to the authentication page, breaking code-server completely.

See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link

Since listening is asynchronous, this guarantees the address will be
filled out.

This allows the use of port 0, which is interpretted automatically to
mean "random port".

Additional logging consistency fixes.

Fixes #757.

* Propogate full env to browser

* Add support for setting $ITEM_URL

* Add serviceURL getter