fix lint error

apps/app/.eslintrc.js

@@ -89,7 +89,7 @@ module.exports = {
     'src/client/interfaces/**',
     'src/client/models/**',
     'src/client/services/**',
-    'src/client/util/**'
+    'src/client/util/**',
   ],
   settings: {
     // resolve path aliases by eslint-import-resolver-typescript