[navigation menu] Add openOnHover and closeOnClick props

[atomiks]

• I have followed (at least) the PR section of the contributing guide.

Adds two props:

• openOnHover to NavigationMenu.Item allows disabling the hover-to-open behavior for individual items/triggers
• closeOnClick to NavigationMenu.Link closes the popup by default when clicking a link, useful when it's in a shared layout across the links, defaulting to uncontrolled behavior

Closes #2254

[pkg-pr-new]

vite-css-base-ui-example

npm i https://pkg.pr.new/@base-ui-components/react@2278

commit: 8fc552c

[mui-bot]

Bundle size report

Bundle	Parsed Size	Gzip Size
@base-ui-components/react	🔺+225B(+0.07%)	🔺+31B(+0.03%)

Details of bundle changes

Generated by 🚫 dangerJS against 8fc552c

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[michaldudak]

When an item has openOnHover = false, it can still be opened on hover after another item is opened. This seems OK, but the popup doesn't close on mouseout (it behaves as it was open by clicking).

[atomiks]

This seems OK

This seems unexpected to me; I've changed it so it closes instead when mousing out of the openOnHover trigger