feat(Drawer): add support for `Body Scroll`.

[ice6]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

sometime, when the drawer popup, we still need the body scrollable. see Github's copilot conversion dialog.

Describe the solution you'd like

check here:

https://getbootstrap.com/docs/5.3/components/offcanvas/#body-scrolling

Additional context

No response

[bb-auto]

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