Add initial test for front-end

Author: kangasta

.github/workflows/back-end.yaml .github/workflows/back-end.yml.github/workflows/back-end.yaml renamed to .github/workflows/back-end.yml

@@ -0,0 +1,29 @@
+name: Front-end
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - front-end/**
+  pull_request:
+    branches:
+      - main
+    paths:
+      - front-end/**
+
+jobs:
+  test:
+    name: Test and build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        node-version: '20'
+    - name: Install dependencies
+      run: npm ci
+    - name: Build production bundle
+      run: |
+        # npm run lint
+        npm test -- --coverage
+        npm run build