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 to look like this:
![screen](https://f.cloud.github.com/assets/2024318/2118383/4b0b3c30-9103-11e3-952b-55f7ab359de1.png)