fix(android:scalesPageToFit): scalesPageToFit does not work as intended , especially for large jpg and png images. (#275)

fixes #113

- One can verify that this for jpg images loaded on the webview (eg: https://www.ecda.gov.sg/growatbeanstalk/PublishingImages/READ%20Publications%20and%20Research/Parent%20Infographic%20Series/Infographic%204.jpg)
- This is a replication of the pull request that was originally made in the react-native repo (https://github.com/facebook/react-native/pull/17195), but was not merged in due to no reviews.

android/src/main/java/com/reactnativecommunity/webview/RNCWebViewManager.java

 
   @ReactProp(name = "scalesPageToFit")
   public void setScalesPageToFit(WebView view, boolean enabled) {
-    view.getSettings().setUseWideViewPort(!enabled);
+    view.getSettings().setLoadWithOverviewMode(enabled);
+    view.getSettings().setUseWideViewPort(enabled);
   }
 
   @ReactProp(name = "domStorageEnabled")