Real-time dashboard for live chat shows the wrong label for reaction and response time graph.

Description:

On hovering the mouse on the line graph for reaction and response time, the values are altered e.g. reaction time shows response time value and vice versa.

Steps to reproduce:

1.enable live chat and go to the live chat
2. Move to the real-time dashboard by choosing the option from the left panel.
3. Scroll to the last graph which shows reaction and response time graph.
4. Hover on the line for reaction time and response time,