Minor tweaks in real-time graphs to make it more useful (Feature enhancement request)

[amitv87]

• The graphs on mouse hover show rounded values as shown in the attached image. Ideally, they can reflect precise values as the graph already appears very smooth and also there is enough empty area in the hover popup.
• The real-time graphs would be more useable if they could be paused/unpaused on mouse click as against an always moving one.
• An export to csv option on right mouse click can be very handy.