[Feature] supports sort sites list by domain

[zssshk]

What would you like to be added or improved?

There are a lot of domain names added now, belonging to different businesses, which looks a bit messy! It is recommended to add a classification sorting function, which can drag the domain name to sort, so that it can be better managed. And it is linked with the certificate page.

Why is it needed?

Once you add a lot of domain names, it will be a bit confusing to manage them later!