feat: fix export (#202)

* feat: general app improvements

* feat: fix export

Author: just1and0

development/index.tsx

@@ -1,7 +1,10 @@
+import { NativeModules } from 'react-native'
 import Paystack from './paystack';
 import * as paystackProps from './types'
 
 export {
   Paystack,
   paystackProps
 }
+
+export default NativeModules.ReactNativePaystackWebviewModule