Improved admin dashboard statistics view

Lukas W.

Formerly katsulynx
When adding a lot of statistics to the admin dashboard, the script seems to attempt to press them all into a single line, no matter what. Readability already greatly suffers when only adding two more statistics this way, and it obviously only becomes worse. As I actually like the readability of two per line, I'd suggest to keep it that way and put new graphs in additional lines instead.