Fixed menu servers innerpage layout bug

This is a bug I caused on lower resolutions in [this pull request](https://github.com/garrynewman/garrysmod/pull/256). Sorry about that.

Image of the bug
![menubug](http://puu.sh/3m7Si.png)
Source: http://facepunch.com/showthread.php?t=1276264&p=41148460&viewfull=1#post41148460