[Date picker] Popover blocks background clicks

[jeremie-lucca]

When the select input is larger than the calendar, a click on right of calendar will fail to close the dropdown (because user clicks on dropdown).

https://github.com/LuccaSA/lucca-front/assets/25581936/f3514f7e-271a-4aa1-bd11-71737f187942

Options can be considered :

• Use a width: fit-content on dropdowns instead of a fixed min-width
• Condition it with :has(.lu-date-picker-panel)