Add git status check after frontend-build in test-ui workflow

Co-authored-by: TwiN <15699766+TwiN@users.noreply.github.com>

.github/workflows/test-ui.yml

@@ -15,4 +15,13 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - run: make frontend-install-dependencies
-      - run: make frontend-build
+      - run: make frontend-build
+      - name: Check for uncommitted changes
+        run: |
+          if [ -n "$(git status --porcelain)" ]; then
+            echo "Error: There are uncommitted changes after running 'make frontend-build'"
+            echo "Please run 'make frontend-build' locally and commit the changes"
+            git status
+            git diff
+            exit 1
+          fi