refactor: migrate from argon2 -> @node-rs/argon2 (#4733)

* chore(deps): replace argon2 w/@node-rs/argon2

* refactor: clean up hashPassword functions

* refactor(util): pass in process.platform

* fix: use correct settings for test-extension

Before, it was running into errors with an @types package.

Now, we're correctly running `tsc` so it picks up our `tsconfig.json` and we're
telling TypeScript to not typecheck our lib and exclude `node_modules`

ci/build/build-standalone-release.sh

@@ -1,10 +1,6 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-# This is due to an upstream issue with RHEL7/CentOS 7 comptability with node-argon2
-# See: https://github.com/cdr/code-server/pull/3422#pullrequestreview-677765057
-export npm_config_build_from_source=true
-
 main() {
   cd "$(dirname "${0}")/../.."