Add new line at the end of kotlin file

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/src/main/java/com/nextcloud/talk/ui/MessageInput.kt

@@ -56,4 +56,4 @@ class MessageInput : MessageInput {
         set(messageSendButton) {
             super.messageSendButton = messageSendButton
         }
-}
+}