Add CI workflow for testing the frontend

.github/workflows/test.yml

@@ -1,14 +1,15 @@
-name: Test Python
+name: Test
 on:
   push:
     branches:
       - master
   pull_request:
 jobs:
-  test:
+  test_backend:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout sources
+        uses: actions/checkout@v4
       - name: Install Python
         uses: actions/setup-python@v5
         with:
@@ -32,3 +33,24 @@ jobs:
           uv lock --locked
           uv export --format requirements-txt > requirements.txt.locked
           diff requirements.txt requirements.txt.locked
+  test_frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+      - name: Install NodeJS
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - name: Install dependencies
+        run: |
+          cd frontend
+          npm ci
+      - name: Build packages
+        run: |
+          cd frontend
+          npm run build
+      - name: Check lints and formatting
+        run: |
+          cd frontend
+          npm run check