About change the way for dns rewrites.

### Prerequisites

- [x] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions) and found no answer

- [x] I have searched other issues and found no duplicates

- [x] I want to request a feature or enhancement and not ask a question

### The problem

Hi there, could you change DNS rewrites as I can set an ip together with many domains? Because I have many websites need use DNS rewrites, 20-30 websites or more, sometimes, I need change the answer ip, but I need chage the answer ip one by one.

### Proposed solution

Maybe can set a group, we can put websites in it. An ip for a group. If we wanna change the ip for these domains, we just need change the ip for the group.

### Alternatives considered and additional information

_No response_