[RNMobile] Fix for extra BR tag on Title field on Android (#16021)

* Remove extra BR tag that may happen at the end of the Title field on Android when pressing Enter.key

* Make sure to set `deleteEnter={ true }` so that Android does delete the new line / BR tag on enter pressed

packages/editor/src/components/post-title/index.native.js

@@ -95,6 +95,7 @@ class PostTitle extends Component {
 					style={ style }
 					fontSize={ 24 }
 					fontWeight={ 'bold' }
+					deleteEnter={ true }
 					onChange={ ( value ) => {
 						this.props.onUpdate( value );
 					} }