Group USB options together

src/freedombone-app-icecast

                1 $"Import stream files from directory" off \
                2 $"Import stream files from USB drive" off \
                3 $"Format a USB drive for stream file storage" off \
-               4 $"Manually edit playlist" off \
-               5 $"Export stream files to USB drive" off \
+               4 $"Export stream files to USB drive" off \
+               5 $"Manually edit playlist" off \
                6 $"Enable login for stream visitors" off \
                7 $"Change password for stream visitors" off \
                8 $"Re-scan playlist" off \
             1) icecast_import_from_directory;;
             2) icecast_import_from_usb;;
             3) icecast_format_drive;;
-            4) icecast_edit_playlist;;
-            5) icecast_export_to_usb;;
+            4) icecast_export_to_usb;;
+            5) icecast_edit_playlist;;
             6) icecast_enable_login;;
             7) icecast_change_login;;
             8) clear