test: add automation

Author: JakobVogelsang

.github/workflows/test-on-pr-branch.yml

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+name: Test on PR branch
+on: pull_request
+
+jobs:
+  test-on-pr-branch:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install playwright browsers
+        run: npx playwright install --with-deps
+
+      - name: Run tests
+        run: npm run test

.github/workflows/test.yml

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+name: Test
+
+on: workflow_dispatch
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install playwright browsers
+        run: npx playwright install --with-deps
+
+      - name: Run tests
+        run: npm run test

.github/workflows/update-screenshots.yml

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+name: Update Screenshots
+
+on: workflow_dispatch
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install playwright browsers
+        run: npx playwright install --with-deps
+
+      - name: Run tests
+        run: npm run test
+
+      - name: Update screenshots
+        if: failure()
+        run: npm run test:update
+
+      - name: Upload failed screenshots as artifacts
+        uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          name: failed_screenshots
+          path: |
+            screenshots/*/failed/
+            screenshots/*/baseline/