Bump version to 1.4.0

demo/yarn.lock

   integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q==
 
 react-native-autoheight-webview@../:
-  version "1.3.6"
+  version "1.4.0"
   dependencies:
     prop-types "^15.7.2"
 

package.json

 {
   "name": "react-native-autoheight-webview",
-  "version": "1.3.6",
+  "version": "1.4.0",
   "description": "An auto height webview for React Native, even auto width for inline html",
   "main": "autoHeightWebView",
   "types": "index.d.ts",