Update CI workflow for Node.js setup and wrap App component with ToastProvider for notifications

.github/workflows/ci.yml

@@ -9,7 +9,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-	@@ -24,39 +24,10 @@ jobs:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
         run: npm ci
 
       - name: Run ESLint