Now we can be easy to add a menu item without define `action`, just use
`on_click` callback.
## Break Changes
- Removed complex methods: `menu_element_with_check_and_disabled`,
`menu_element_with_icon_and_disabled`, you can use `item` and
`PopupMenuItem` instead.
Initialize a Next.js-based documentation site using Fumadocs framework
to provide comprehensive guides for all GPUI components. The site
includes getting started guides, API references, and documentation for
40+ components including Button, Input, Table, Tree, Chart, and more.
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Co-authored-by: Jason Lee <huacnlee@gmail.com>
