Script Summary: Make the side pane a bit wider to compensate for new crap
For the new GMail (requires access to the API they added). When they added the buttons to the labels to add colors, they were cutting off my label names a tad. This script just tweaks the width to account for that. If you want it more or less wide, just change the SIDE_WIDTH const in the beginning, but I haven't tested crazy values, so use some caution.
