Fixed inconsistent use of ToLowerInvariant (blushiemagic#43)

Inconsistent use of String.ToLowerInvariant() in the return line of FilterName(string, string, string) has been forcing players to enter filter criteria in all lower case characters. By adding a call to ToLowerInvariant() on modFilter, the player may now search with any casing.

Author: mixels

Sorting/ItemSorter.cs

@@ -138,7 +138,7 @@ private static bool FilterName(Item item, string modFilter, string filter)
 			{
 				modName = item.modItem.mod.DisplayName;
 			}
-			return modName.ToLowerInvariant().IndexOf(modFilter) >= 0 && item.Name.ToLowerInvariant().IndexOf(filter.ToLowerInvariant()) >= 0;
+			return modName.ToLowerInvariant().IndexOf(modFilter.ToLowerInvariant()) >= 0 && item.Name.ToLowerInvariant().IndexOf(filter.ToLowerInvariant()) >= 0;
 		}
 	}
-}
+}