Create dashboard page

[ojongerius]

Initial interesting metrics worth visualising:

• Amount of jobs, broken down on total, country, and site. This one will become a little more interesting once we start purging data
• Amount of created jobs, brown down by total, country and site. There more sites are added the more interesting this will become.
• Breakdown of jobs per country, a pie chart showing total, a bar chart to show the history would be nice too.

Might be worth considering that if we have a data solution like, say, Datadog it might make more sense push metrics, and render graphs and charts there.

Current thinking is that, as it's free, the data is available in the DB, and it's simple enough, a dashboard in Django makes most sense.

[ojongerius]

Am playing with data in a Jupyter notebook, might be a little while until I'll commit any code.