Image credit: Valve "Bigger," Gabe Newell chants incessantly at Steam's Valve UI and UX team at Valve. "Larger! More! Never stop making it bigger!" He screams. At least this is what I imagine has been happening over the past year, given the number of size related ( mostly widening ) changes that's been taking place on the storefront. Today, another UI change is on the way, this time for the Steam Community Market. As explained in a blog post , the Community Market is a platform that lets people on Steam buy and sell in-game and Steam Community items to one another. "Over the past few years, the number of games participating in the Market has grown significantly," the post states. "More than 13,000 games now have Steam Community items available on the Market, and more than 700 have in-game items. These game economies have outgrown the Market’s existing browsing and discovery tools, so it's time for an upgrade." The upgrade comes in several flavours. First of all, listings will now be bigger.…