dockerize front-end and pass env vars to npm build (#614)

* Revert "dockerize front end (#558)"

This reverts commit 89c23faf7a.

* dockerize frontend
- adds score server and website docker compose
- creates docker ignore
- adds .env.* for dev, prod and local
- adds dockerfile for website
- adds env to gatsby-config
- adds hostaddress to develop / start script
- adds istructions in README for running docker
- replaces fixed URLS with ones based on env vars
- creates a score server dockerfile

* updates README to change map tiles source

* adds env DATA_SOURCE:development to deploy GHA

* capitalize readme

.github/workflows/build_deploy.yml

@@ -46,6 +46,8 @@ jobs:
         run: npm ci
       - name: Build
         run: npm run build --if-present
+        env:
+          DATA_SOURCE: development
       - name: Get directory contents
         run: ls -la public
       - name: Lint