refactor!: serve the static frontend trough the backend (#520)

Co-authored-by: Alessandro (Ale) Segala <43508+ItalyPaleAle@users.noreply.github.com>

CONTRIBUTING.md

@@ -31,9 +31,11 @@ Before you submit the pull request for review please ensure that
 - You run `npm run format` to format the code
 
 ## Setup project
+
 Pocket ID consists of a frontend, backend and a reverse proxy. There are two ways to get the development environment setup:
 
 ## 1. Using DevContainers
+
 1. Make sure you have [Dev Containers](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers) extension installed
 2. Clone and open the repo in VS Code
 3. VS Code will detect .devcontainer and will prompt you to open the folder in devcontainer
@@ -48,8 +50,8 @@ The backend is built with [Gin](https://gin-gonic.com) and written in Go.
 #### Setup
 
 1. Open the `backend` folder
-2. Copy the `.env.example` file to `.env` and change the `APP_ENV` to `development`
-3. Start the backend with `go run -tags e2etest ./cmd`
+2. Copy the `.env.example` file to `.env` and edit the variables as needed
+3. Start the backend with `go run -tags e2etest,exclude_frontend ./cmd`
 
 ### Frontend
 
@@ -58,27 +60,18 @@ The frontend is built with [SvelteKit](https://kit.svelte.dev) and written in Ty
 #### Setup
 
 1. Open the `frontend` folder
-2. Copy the `.env.example` file to `.env`
+2. Copy the `.env.example` file to `.env` and edit the variables as needed
 3. Install the dependencies with `npm install`
 4. Start the frontend with `npm run dev`
 
-### Reverse Proxy
-We use [Caddy](https://caddyserver.com) as a reverse proxy. You can use any other reverse proxy if you want but you have to configure it yourself.
-
-#### Setup
-Run `caddy run --config reverse-proxy/Caddyfile` in the root folder.
-
-You're all set!
-
-## Debugging
-1. The VS Code is currently setup to auto launch caddy on opening the folder. (Defined in [tasks.json](.vscode/tasks.json))
-2. Press `F5` to start a debug session. This will launch both frontend and backend and attach debuggers to those process. (Defined in [launch.json](.vscode/launch.json))
+You're all set! The application is now listening on `localhost:3000`. The backend gets proxied trough the frontend in development mode.
 
 ### Testing
 
 We are using [Playwright](https://playwright.dev) for end-to-end testing.
 
 The tests can be run like this:
+
 1. Start the backend normally
 2. Start the frontend in production mode with `npm run build && node --env-file=.env build/index.js`
 3. Run the tests with `npm run test`