feat: Initial clean release of CHM

packages/app-mobile/utils/initReact.ts

@@ -0,0 +1,7 @@
+import shim from '@joplin/lib/shim';
+
+// .setReact needs to be called very early in the application startup process.
+// This file can be imported to ensure that .setReact has been called prior to
+// all other import/requires.
+const React = require('react');
+shim.setReact(React);