off hand weapon/shield support

ArtifactAppearanceLink.lua

hooksecurefunc(ArtifactAppearanceSlotMixin, "OnClick", function(button)
	if IsModifiedClick("CHATLINK") then
		local mh = {strsplit(":", GetInventoryItemLink("player", 16))}
		local oh = {strsplit(":", GetInventoryItemLink("player", 17))}
		
		mh[15] = C_ArtifactUI.GetPreviewAppearance() -- replace appearance
		oh[15] = C_ArtifactUI.GetPreviewAppearance()
		
		ChatEdit_InsertLink(table.concat(mh, ":")..table.concat(oh, ":"))
	end
end)