[FR] selection menu with a single list style

[LucasXu0]

Description

• [ ] implement a new selection menu with a single list style.
• [ ] the new selection menu should be fixed height, which also can be customized.
• [ ] the selection menu item should be sorted by group.
• [ ] users can search or filter the showing selection menu item by typing keywords.
• [ ] users can click on the item to select an item.
• [ ] users can also select an item by the arrow keys and the enter key.
• [ ] developers can customize the icon, name, and tooltips for a selection menu item.
• [ ] developers can customize a new group for the items or insert a new item into an existing group.

Impact

• When AppFlowy is displayed on a small size window, the current selection menu will be blocked.
• Developers can customize the selection item group.

Additional Context

No response

[jessicamrbr]

suggestion: