chore: add job for grid performance

Author: mbechev

.github/workflows/ci.yml

@@ -47,6 +47,12 @@ jobs:
  npm ci
  npm run build
 
+ - name: Build Grid Performance app
+ working-directory: ./examples-standalone/grid-performance
+ run: |
+ npm ci
+ npm run build
+
  standalone-examples-node18:
  runs-on: ubuntu-latest