Upgrade Prettier from 1.17 to 2.0.2.

Summary:
This gets us on the latest Prettier 2.x:
https://prettier.io/blog/2020/03/21/2.0.0.html

Notably, this adds support for TypeScript 3.8,
which introduces new syntax, such as `import type`.

Reviewed By: zertosh

Differential Revision: D20636268

fbshipit-source-id: fca5833d003804333a05ba16325bbbe0e06d6c8a

ReactAndroid/src/androidTest/js/ShareTestModule.js

@@ -23,7 +23,7 @@ class ShareTestApp extends React.Component {
 
 const ShareTestModule = {
   ShareTestApp: ShareTestApp,
-  showShareDialog: function(content, options) {
+  showShareDialog: function (content, options) {
     Share.share(content, options).then(
       () => RecordingModule.recordOpened(),
       ({code, message}) => RecordingModule.recordError(),