Jetpack Mobile should provide domain suggestions based on current subdomain

[guarani]

Expected behavior

It would be nice if the app used my subdomain to make suggestions when purchasing a domain.

Actual behavior

At the moment, the app appears to use the site title to provide domain suggestions. My assumption is that most users who are buying a domain would like to use their subdomain as their domain.

Steps to reproduce the behavior

1. Open the Jetpack app to manage a site
2. Tap Domains
3. Tap "Search for a domain"
4. Notice the default suggestions are based on the site title (which is often literally "Site Title")

Tested on iPhone 11, iOS 15.3.1, WPiOS 19.9