[FIX] App crash with backspace on input message (#906)

* Fix - App crash with backspace on input message

* Improving code to fix backspace bug

* Fix destructuring undefined

* Improvement code to fix backspace bug

app/containers/MessageBox/index.js

@@ -188,7 +188,7 @@ class MessageBox extends Component {
 		this.handleTyping(!isTextEmpty);
 		this.setInput(text);
 
-		if (this.component) {
+		if (!isTextEmpty) {
 			const { start, end } = this.component._lastNativeSelection;
 			const cursor = Math.max(start, end);
 			const lastNativeText = this.component._lastNativeText;