Improve menu mobile display

[FelixMalfait]

https://www.figma.com/design/xt8O9mFeLl46C5InWwoMrN/Twenty?node-id=43185-135140&node-type=frame&t=OOVK3xhrcy5zJPVL-11

Current behavior

Desired behavior

TODO :

• [ ] #8599
• [ ] Augment icon size
• [ ] Take the same as compact mode but in horizontal as much as possible
• [ ] On Figma the container around a folder is meaning that the folder is open, but other favorites and items are not in container like that
• [ ] For scrolling behavior : show everything and scroll all instead of by container like in desktop nav bar