Limit length of the message to 67 characters

codec2talkie/src/main/res/layout/activity_message_view.xml

@@ -23,6 +23,7 @@
     <androidx.appcompat.widget.AppCompatEditText
         android:id="@+id/messages_edit"
         android:layout_width="0dp"
+        android:maxLength="67"
         android:layout_height="wrap_content"
         app:layout_constraintEnd_toStartOf="@+id/messages_send"
         app:layout_constraintStart_toStartOf="parent"