Add support for a trailing/right-side icon in Chip component

[CatLover01]

Currently, when displaying a long list of items using chips, we need to cap the visible count (e.g., showing 5 out of 20 items) and place the remaining items inside an overflow menu. To maintain visual consistency across the UI, the menu trigger should look like a chip with a right-aligned indicator icon, such as a dropdown chevron. Adding a trailing icon prop to the Chip component would allow us to represent these overflow menus cleanly without making the chip appear selectable.

[rtivital]

Chip is a checkbox/radio input, so it cannot be used as a menu trigger accessibly – screen readers would announce it as a checkbox and it would toggle its checked state on click. Use a Button styled to match the chips instead:

<Menu>
  <Menu.Target>
    <Button
      variant="default"
      radius="xl"
      size="xs"
      rightSection={<IconChevronDown size={14} />}
    >
      +15 more
    </Button>
  </Menu.Target>
  <Menu.Dropdown>{/* remaining items */}</Menu.Dropdown>
</Menu>