Info on loading screen are wrong for all map

[qs-racer]

Description:
On all map loading screen, the top bar information showing the size of map is wrong.
U make a mistake between Lengh and area.
For example, it show 2km^2 or 4 km^2, instead of simple 2km or 4km.
So be careful between using length or area (area should be 4km^2 and 16km^2).

Tested on various map, for example Saarema should be 4km or 16km^2, not 4km?.
Karbala should be 4km^2 or 2km, not 2km^2

Steps to Reproduce:
Load a 2km or 4km map