Ionic `configs.xml` splashscreen preferences for low-end android devices.

lowend-preferences-config.xml

<!-- 
  Some low-end android devices are too slow thus take too long to load the app,
  which causes throwing error "can't load index.html". 
  Just add these settings after <preference name="SplashScreen" value="screen" /> in config.xml.
-->
<preference name="SplashScreenDelay" value="3000" />
<preference name="AutoHideSplashScreen" value="false" />
<preference name="ShowSplashScreenSpinner" value="true" />
<preference name="loadUrlTimeoutValue" value="700000" />
<!--
  Just before <platform name="android">
-->