Add option to switch release channel from Settings

### 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

Having to rebuild to try a different release channel is slightly inconvenient.

### Proposed solution

Being able to switch between edge, beta, and stable releases in general preferences and not having to keep up with configurations and logs.

### Alternatives considered and additional information

_No response_