Change Dashboard query activity graph labels to reduce confusion

From here:

The graph labels confused me in the beginning too. Maybe the titles could be tweaked for v5?

Queries over last 24 hours

Clients (over time)


Queries Forwarded and Blocked - over the last 24 hours

Queries by Client - over the last 24 hours

Or something similar to reduce the initial confusion?

Implemented in v5.0

"Total queries over last 24 hours" and "Client activity over last 24 hours"