Revert "Renamed "Zoom" to "Button Border" and make it do its thing again"

This reverts commit ccf041bdcd.

ButtonBar.lua

@@ -162,13 +162,10 @@ function ButtonBar:UpdateButtonLayout()
 	if not LBF then
 		for i = 1, #buttons do
 			local button = buttons[i]
-			if button.icon then
+			if button.icon and self.config.skin.Zoom then
 				button.icon:SetTexCoord(0.07,0.93,0.07,0.93)
-				if self.config.skin.Zoom then
-					button.normalTexture:Hide()
-				else
-					button.normalTexture:Show()
-				end
+			elseif button.icon then
+				button.icon:SetTexCoord(0,1,0,1)
 			end
 		end
 	end