enh: pick the qtquickconf file from the root folder

Closes QDS-14666

resources/version.json

@@ -2,5 +2,6 @@
   "appVersion": "@GIT_VERSION@",
   "qtVersion": "@QT_VERSION@",
   "qtQuickComponentsVersion": "@QT_QUICK_COMPONENTS_VERSION@",
-  "emsdkVersion": "@EMSDK_VERSION@"
+  "emsdkVersion": "@EMSDK_VERSION@",
+  "buildDateTime": "@BUILD_DATE_TIME@"
 }