* Change per-City GPP points math and separate breakdown (producer w/ source doc) from aggregates (consumer ignoring source)
* Change CityScreen GPP list to not do aggregation itself, but show a breakdown on click
* Change "birth" city for GPP to a ***weighted*** random - no Great Mufties from cities not generating any Mufty points!
* Nicer signature for getGreatPersonPointsBreakdown
* Minor warnings linting and template for Sweden's bonus in the breakdown Popup