message: feat(deployment): downgrade to ios 10
diff: <preference name="SplashScreen" value="screen" />
  <preference name="SplashScreenDelay" value="3000" />
  <preference name="Orientation" value="portrait" />
  - <preference name="deployment-target" value="11.0" />
  + <preference name="deployment-target" value="10.0" />
  <feature name="CDVWKWebViewEngine">
  <param name="ios-package" value="CDVWKWebViewEngine" />
  </feature>
  