added workflow for testing frontend

.github/workflows/ci-tests.yml

@@ -0,0 +1,30 @@
+name: UGent-3
+run-name: ${{ github.actor }} is running frontend tests 🚀
+on: [push, pull_request]
+jobs:
+  Frontend-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+
+      - name: Cache dependencies
+        uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: npm-${{ hashFiles('package-lock.json') }}
+          restore-keys: npm-
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Preview Web App
+        run: npm run preview &
+
+      - name: Running tests
+        run: npm test