Currently, there is only 1 plan view that is unreadable on mobile
and sometimes also complicated in some cases.
This commit adds a new "Kanban" view used by default on mobile
and available in desktop too. This commit also changes the edit bar
of the FloorScreen: the design is changed and some features are added
like the multiple selection of the tables or the adding and removing
of floors directly from the frontend. It also changes the navbar
of the PoS, moving the buttons in a navigation menu accessible
thanks to a button.
Task-id: 3212032