Externalize NavigableMenu, Dropdown and Modal components imported from @wordpress/components

[eason9487]

Changes proposed in this Pull Request:

It's part of #1833

• Externalize NavigableMenu, Dropdown and Modal components.
• Remove an invalid CSS hack that had fixed the Tooltip position within a Modal before.
  • Currently, the minimum supported version of this extension is WP 5.9.
    • This hack doesn't work for WP 5.9 and 6.0.
    • WP >= 6.1 itself has already fixed this issue, so it's no longer needed.

Screenshots:

📷 NavigableMenu component on the Reports page

📷 Dropdown component on the Reports page

📷 Modal component on the Edit Free Listings page

📷 Tooltip position of the close button within a Modal for WP >= 6.1

Detailed test instructions:

1. Go to the Reports page
2. Check if the NavigableMenu component works well
   • AppTabNav: The main menu items
   • AppSubNav: The sub-menu items on the Reports page
3. Check if the Dropdown component works well
   • The filter to select program(s)
4. Go to the following pages to check if the Modal component works well
   • The welcome modal of completing onboarding: Open with a site URL with path: /wp-admin/admin.php?page=wc-admin&path=%2Fgoogle%2Fproduct-feed&guide=submission-success
   • The modal to confirm account(s) disconnection
   • The shipping modals on the Edit Free Listings page
5. Search the codebase to check if all these components are imported from 'extracted/@wordpress/components'.

Changelog entry

[jorgemd24]

Thanks, @eason9487, for working on this! I tested it on WP 6.2 and the upcoming release 6.3, and it works perfectly. Looks good to me! 👍