Enhancement idea: provide analytics option(s) on a per map basis

Translink has asked for some basic analytics for the TRP.

They are interested in:
-number of users / number of unique users who are accessing the site

Ideally these numbers would be delivered via a self-service dashboard page.

@qqnluaq, @franTarkenton - any ideas for implementation?

The issue names no files, tests, or entry points. Start by clarifying whether per-map user and unique-user counts plus a self-service dashboard are required, then agree on implementation scope and acceptance criteria with the maintainers. Done should be a decided, actionable specification rather than an open-ended implementation idea.

Written by the indexing model from the issue text.