Fix scroll panes when using pfUI

I wish I could tell you why this is a problem

gui/auction_listing.lua

@@ -904,7 +904,7 @@ local methods = {
 function M.new(parent, rows, columns)
     local rt = CreateFrame('Frame', nil, parent)
     rt.columns = columns
-    rt.ROW_HEIGHT = (parent:GetHeight() - HEAD_HEIGHT - HEAD_SPACE) / rows
+    rt.ROW_HEIGHT = ((parent:GetHeight() / parent:GetEffectiveScale()) - HEAD_HEIGHT - HEAD_SPACE) / rows
     rt.expanded = {}
     rt.handlers = {}
     rt.sorts = {}

gui/item_listing.lua

@@ -65,7 +65,7 @@ function M.new(parent, on_click, selected)
 
 	local rows = T.acquire()
 	local row_index = 1
-	local max_height = content_frame:GetHeight()
+	local max_height = content_frame:GetHeight() / content_frame:GetEffectiveScale()
 	local total_height = 0
 	while total_height + ROW_HEIGHT < max_height do
 		local row = CreateFrame('Frame', nil, content_frame)

gui/listing.lua

@@ -269,7 +269,7 @@ function M.new(parent)
     local st = CreateFrame('Frame', gui.unique_name(), parent)
     st:SetAllPoints()
 
-    st.numRows = max(floor((parent:GetHeight() - HEAD_HEIGHT - HEAD_SPACE) / ROW_HEIGHT), 0)
+    st.numRows = max(floor(((parent:GetHeight() / parent:GetEffectiveScale()) - HEAD_HEIGHT - HEAD_SPACE) / ROW_HEIGHT), 0)
 
     local contentFrame = CreateFrame('Frame', nil, st)
     contentFrame:SetPoint('TOPLEFT', 0, 0)