toevoegen github actions

.github/workflows/frontend.yml

@@ -0,0 +1,17 @@
+name: Frontend
+on: [push]
+jobs:
+  lint:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Install dependencies
+        run: cd frontend && npm install
+      - name: Lint code
+        run: cd frontend && npx eslint .
+      - name: Run TypeScript checks
+        run: cd frontend && npx tsc --noEmit