docs: create Docusaurus website (ngworker#143)

## PR Checklist

Please check if your PR fulfills the following requirements:

- [x] The commit message follows our guidelines: CONTRIBUTING.md#commit
- [ ] Tests for the changes have been added (for bug fixes / features)
- [x] Docs have been added / updated (for bug fixes / features)

## PR Type

What kind of change does this PR introduce?

<!-- Please check the one that applies to this PR using "x". -->

```
[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[x] Build related changes
[ ] CI related changes
[x] Documentation content changes
[ ] Other... Please describe:
```

## What is the current behavior?
No documentation website
<!-- Please describe the current behavior that you are modifying, or
link to a relevant issue. -->

Issue Number: N/A

## What is the new behavior?
A beautiful Docusaurus website.

## Does this PR introduce a breaking change?

```
[ ] Yes
[x] No
```

<!-- If this PR contains a breaking change, please describe the impact
and migration path for existing applications below. -->

## Other information
Done during The Frame Drops. Please donate at
https://donate.theframedrops.com

# To do
- [ ] Convert to TypeScript files

---------

Co-authored-by: Nacho Vazquez <[email protected]>

.github/workflows/ci.yml

@@ -88,6 +88,39 @@ jobs:
       # lower the number of agents to reduce spent compute time.
       number-of-agents: 4
 
+  deploy-docs:
+    name: '[Merge] Deploy docs to GitHub Pages'
+    needs: dte_coordinator
+    if: github.event_name == 'push' && github.ref_name == 'main'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: read
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Check out the source code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Setup
+        uses: ./.github/actions/setup
+      # Uses the cache generated in the distributed step
+      - name: Build docs
+        run: yarn nx build docs-lumberjack-docs-app
+      - name: Set up GitHub Pages
+        uses: actions/configure-pages@v2
+      - name: Upload docs to GitHub Pages
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: dist/packages/docs/lumberjack-docs-app/
+      - name: Deploy docs to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1
+
   sonarcloud:
     name: SonarCloud
     needs: dte_coordinator

.gitignore

@@ -43,3 +43,7 @@ Thumbs.db
 
 # Nx
 migrations.json
+
+# Generated Docusaurus files
+.docusaurus/
+.cache-loader/

.prettierignore

@@ -4,3 +4,4 @@
 /coverage
 /reports
 /.angular/
+.docusaurus/