CashdeskPar module has been redesigned for Dolibarr version 10. To mention only the most striking improvements, the main theme and theme Dolibarr 3.1 have been reviewed for desktop and phone screens.
For desktop screens, the two columns of the screen share the page more elegantly because the elements of the basket are displayed on a single long line.
For phone screens, the cart lines display at the bottom and occupy a complete line.
There is a wiki for the module at: https://wiki.dolibarr.org/index.php/Module_CashdeskPar_EN
You can test the module on the the demo site : dolipar.org/dolibarr