Fix not being able to see population pop up

[Texas 2]

When you hover over the population of a country in the pop up on the left side of screen, it shows a list of all the nationalities of people and also how many population you get each turn. This works fine in early game but as soon as you start to conquer more people, the top of the list grows off screen. I then can't see how many people i get each turn or most of the top of the list. I suggest having it grow down, so that the top is always visible