Check formatting in pipeline

.github/workflows/pipeline.yml

@@ -78,6 +78,11 @@ jobs:
           cd ui
           npm ci
 
+      - name: npm check-formatting
+        run: |
+          cd ui
+          npm run check-formatting
+
       - name: npm build
         run: |
           cd ui

ui/package.json

@@ -32,7 +32,8 @@
     "build": "react-scripts build",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
-    "prettier": "prettier --write src/**/*.js"
+    "prettier": "prettier --write src/*.js src/**/*.js",
+    "check-formatting": "prettier -c src/*.js src/**/*.js"
   },
   "homepage": ".",
   "proxy": "http://localhost:4633/",