Show the subdomains you own in a separate section of the subdomains page

[pikonha]

Feature Request

Currently, all subdomains are displayed in a single list on the subdomains page, making it difficult for users to distinguish between subdomains they own and those they don't.

Describe Preferred Solution

Modify the subdomains page to show only the subdomains owned by the current user. The implementation should handle 2 scenarios:

If I'm the owner of the parent domain

1. Fetch all subdomains
2. Show them in a paginated list

If I'm not the owner of the parent domain

1. Fetch subdomains I own
2. Show them in a paginated list