add test action for PRs

.github/workflows/frontend-tests.yml

@@ -0,0 +1,30 @@
+name: Frontend Tests
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check Out Repo
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '18' 
+
+      - name: Install Dependencies
+        run: npm install
+        working-directory: ./client
+
+      - name: Run Tests
+        run: npm test
+        working-directory: ./client