Refactored the way the app header vertical separators are created. Made them only 1 pixel in width per @marcelinkaaa's request. @aldenml please take a look at how I setup the width, this is the only place I found to set the width, I went down to the custom painter, couldn't find who or what was putting the default width to 2 pixels, that's probably the best place to chance it, couldn't find it.