feat: Adds task-4 solution

.github/workflows/task-4.yaml

@@ -0,0 +1,39 @@
+name: task-4-workflow
+run-name: Task 4 workflow
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "desktop-app/**"
+
+defaults:
+  run:
+    working-directory: desktop-app
+jobs:
+  e2e-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Use Node.js LTS
+        uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+          cache: "npm"
+          cache-dependency-path: desktop-app
+      - name: Install dependencies
+        run: npm ci
+      - name: Run e2e tests
+        id: e2e
+        run: xvfb-run --auto-servernum --server-args="-screen 0 1280x960x24" -- npm run e2e
+      - name: Archive test results
+        id: upload-screenshots
+        if: ${{ failure() && steps.e2e.conclusion == 'failure' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-test-results
+          path: desktop-app/test-results
+          retention-days: 7
+      - run:  echo 'Screenshots available "at ${{ steps.upload-screenshots.outputs.artifact-url }}'
+        if: ${{ failure() && steps.e2e.conclusion == 'failure' }}