[✨] Add CSS variables related to floating properties to the Popover/Select components

[bachdx96]

Is your feature request related to a problem?

Currently, I have 2 problems with Popover/Select component:

• There's no way to let the popover content's width match the trigger's width
• I want to get the available width, height of the popover panel to make the content scroll if necessary

Describe the solution you'd like

In Radix UI, they offer CSS variables on the component.
For example --radix-popover-content-available-width and --radix-popover-content-available-height for the popover content size and --radix-popover-trigger-width and --radix-popover-trigger-height for the trigger size.

It would be great if those variable are also available in Qwik UI components for better styling.

Describe alternatives you've considered

I have tried adding position: relative to the popover container and width: 100% to the popover content. It kinda works but it seems clunky and hackish.

Additional context

No response