I am looking for the 'Preview Pane Extend' script for Gmail in Chrome that once lived at userscript.org. It allows you to use the entire horizontal space in Gmail when the 'People' widget is turned off. If anyone knows where I can find that script, seeing as how userscripts.org is on the fritz, or is willing to create a script that accomplishes the same result, I will be eternally grateful.

Using Tampermonkey 3.7.48 in Chrome 35.0.1916.114 on OS X 10.9.3.