Wrap around menus with Select button

src/menu.c

@@ -206,6 +206,9 @@ static int run_menu(menu_state* state, const file_list* files,
                                 (1 << Button_Select) )) {
             if (menu.cursor < (files->count - 1)) {
                 ++menu.cursor;
+            } else if (buttons & (1 << Button_Select)) {
+                // Wrap around on Select
+                menu.cursor = 0;
             }
         }
     }