[Cleanup] Appearance not appearence (#3819)

# Notes
- These were misspelled.

zone/entity.cpp

@@ -4781,7 +4781,7 @@ void EntityList::SendAppearanceEffects(Client *c)
 				++it;
 				continue;
 			}
-			cur->SendSavedAppearenceEffects(c);
+			cur->SendSavedAppearanceEffects(c);
 		}
 		++it;
 	}