Update BaseChat - BOTTOM.res

A very simple update.

At 329, the chat sits awkwardly above the player avatar in the bottom left corner and is pushed against the side.  This spaces things out nicely.
![screen](https://f.cloud.github.com/assets/2024318/2118383/4b0b3c30-9103-11e3-952b-55f7ab359de1.png)