Native Sync between Adguard Home instances

### 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

Adguard cannot sync between instances/copies.

### Proposed solution

Please add native sync between Adguard Home so we dont have to run a separate docker to make that work.

### Alternatives considered and additional information

_No response_