[CONSOLE] Determine number of users and queries

[vmichalik]

Problem

• In order to determine if the Console is gaining traction, we should track the number of visitors and the usage.
• This doesn't require us to track or process any further details at this time, but it should follow the pattern of our existing segment and mixpanel setup and not create conflicts.

To track:

• Number of unique users
• Number of page visits per user

Solution

• Potentially using Segment and Mixpanel

[kasparkallas]

We could use Matomo: https://matomo.org/