ci: update Angular server start command in background

.github/workflows/playwright.yml

@@ -29,11 +29,10 @@ jobs:
         run: npm run build
 
       # Start Angular development server
-      - name: Start Angular Development Server
-        run: npm start
+      - name: Start Angular Development Server in Background
+        run: nohup npm start > angular.log 2>&1 &
         env:
-          PORT: 4200 # Ensures the server runs on a predictable port
-        continue-on-error: true
+          PORT: 4200 # Ensure the server runs on a predictable port
 
       # Install Playwright and dependencies
       - name: Install Playwright Browsers