Popover property to hide popover when hovering over popover itself

[pbr4ne]

This function solves the problem (这个功能解决的问题)

When choosing a trigger of hover for a popover, if you hover over the popover itself it doesn't disappear.

It is sometimes desirable for the popover to disappear when you leave the trigger body and also disappear when you hover over the popover body. I have a use case where I have many buttons with popovers in close proximity to each other, and it is frustrating to users when trying to move the mouse over those buttons, because the popovers get in the way.

Expected API (期望的 API)

Add new hover-nonsticky option to Popover property trigger

or

Add new Popover property of hover-sticky with a default of true