feat(webapp): CI for webapp dependency integrity

.github/workflows/main.yml

@@ -81,3 +81,7 @@ jobs:
         grep 'desec/' /var/log/syslog
         docker-compose -f docker-compose.yml -f docker-compose.test-api.yml down -v
         docker-compose down -v
+
+    - name: Webapp dependency installation check
+      run: |
+        docker-compose run webapp npm install