Add GitHub Action for automatic formatting

.github/workflows/codequality.yml

@@ -0,0 +1,26 @@
+name: Code quality
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    permissions:
+      # Give the default GITHUB_TOKEN write permission to commit and push the
+      # added or changed files to the repository.
+      contents: write
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ github.head_ref }}
+      - name: Install dependencies
+        run: npm ci
+      - name: Format files using prettier
+        run: npm run format
+      - uses: stefanzweifel/git-auto-commit-action@v4
+        name: Commit possible changes
+        with:
+          commit_message: "Format files using prettier"