Revert the bag bar to the default state? (4 smaller bags and the option to collapse it with just the reagent bag)

[Tuller]

          May we also please have an option to revert the bag bar to the default state? (4 smaller bags and the option to collapse it with just the reagent bag). Left an image below just in case my explanation sucked! :P

https://imgur.com/a/proFNKB

Originally posted by @JBabbb in https://github.com/tullamods/Dominos/issues/841#issuecomment-1997296690