build vagrant box with packer

refactor: upload current git file-tree into vm

So we can actually use this to test the current deployment

refactor: set up `pnpm`

Motivation
----------
`pnpm` itself has a number of advantages, two are very relevant for our repository:
* De-duplication of node modules
* Run commands across packages

This will also setup `dotenvx` to read .env files (for unique port numbers).

It will also make local development with `docker compose` obsolete for our nodejs projects.

How to test
-----------
1. `pnpm install`
2. `pnpm run -r dev`

commits:
  * fix unique ports and environments
  * fix: extraneous import
  * remove obsolete `package-lock.json`
  * run `pnpm install`
  * run `corepack use pnpm@latest`

admin/.env.dist

@@ -2,4 +2,7 @@
 PUBLIC_ENV__META__BASE_URL="http://localhost:3000"
 PUBLIC_ENV__META__DEFAULT_AUTHOR="IT Team 4 Change"
 PUBLIC_ENV__META__DEFAULT_DESCRIPTION="IT4C Frontend Boilerplate"
-PUBLIC_ENV__META__DEFAULT_TITLE="IT4C"
+PUBLIC_ENV__META__DEFAULT_TITLE="IT4C"
+
+PORT=3002
+PORT_HMR=24680