Make creature's Displayname lower priority than translation

[AzureNocte]

When making creature mods, I often encounter such problem, that creature's displayname overwrite translations.
This cause a issue that if I leave displayname empty, like displayname="", the player who are using language that does not have translation files yet would see the creature's speciesname directly, which is typically used for internal definitions(just like the difference between item's identifier and name). And if I define displayname, the translations would not work.

So I suggest adjust the priority of displayname, to be lower than translations.