Multiple response records for UI 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

How can we configure multiple IP addresses to enhance reliability for DNS rewriting, as the current setup only supports a single IP address and raises concerns about a single point of failure?

### Proposed solution

steamcommunity.com
45.114.11.25,118.193.240.37,210.56.51.192

### Alternatives considered and additional information

_No response_