Tracking Center - Allow sorting by Category

[nexusdude365]

As in the title, this is a feature I've wanted for a literal decade now. I tend to track loads of mods prior to downloading. Often times, new mods release which make previously tracked mods obsolete or redundant. This is hard (and tedious) to catch when I can't have all the mods in the same category appear on the same screen and review them before downloading.