Inventory menu fix

Properly reset the function return code variable when pressing B. This also fixes the text of the items not changing when being selected.

Author: Zephiles

ttyd-tools/rel/source/menufunctions.cpp

@@ -42,6 +42,9 @@ void closeSecondaryMenu()
 
 	// Close the menu
 	SelectedOption = 0;
+	
+	// Reset the function return code
+	FunctionReturnCode = 0;
 }