feat(client): Add subscription group name prefix for nodes

[muink]

No description provided.

[1715173329]

Absolutely no, please keep it simple and stupid.
If you want to make the node name more identifiable, just pad the label with domain name when parse subscriptions (e.g. take bar from foo.bar.com/whatever)

[muink]

But not all subscription URLs have human-readable SLD. For example, a provider's name is GoldFish, but its subscription URL's SLD is a string of meaningless characters such as sub.nutryuirelj.xyz. Such a node labels are not identifiable and beautiful.

[1715173329]

So, if providers decide to use such a meaningless name, it's their own issue.

At least you should know exactly what subscription you entered, and that's enough.