Align caption and titles in maps

[caldwellst]

Align captions and titles in maps. The distance between them looks particularly bad for countries that are longer rather than wider, like Chile and Vietnam.

Can be fixed in the same PR as #148.

[zackarno]

also just noting that in this example the break figures on the bubble look odd? 21, 22, 22?

[caldwellst]

Yeah good catch. Did not expect this behaviour.

 scales::pretty_breaks(n=3)(c(1,2,2))
#> [1] 1.0 1.5 2.0

So it's rounding 2 numbers into 3. Need to add a line to map_points.R that checks the number of unique values and uses that as the number of breaks if lower than 3.

min(length(unique(df[[val_col]])), 3)

[hannahker]

@caldwellst @zackarno is this addressed by #151?

[caldwellst]

yes!