Expand "Page Icons" to Include All "My Links" Options + Custom Icons

[KamilKleina]

Currently, the "My Links" section allows users to add various external links, such as social media, websites, and repositories. However, the "Page Icons" section does not include all these options. It would be great if:

1. All options from "My Links" were also available in "Page Icons."
2. Users could add custom icons for external pages (e.g., self-hosted services, personal websites, or less common platforms).

Benefits

1. Consistency between "My Links" and "Page Icons."
2. More flexibility for users who want quick access to their preferred platforms.
3. Improved customization by allowing users to define their own icons for any external page.