Allow rewriting min TTL for any type of request

[k03mad]

Issue Details

In the server settings tab, there is an option to rewrite the TTL only for blocked requests

Proposed solution

Add an option to rewrite the minimum answer TTL for any type of response

Similar to AdGuard Home:
https://github.com/AdguardTeam/AdGuardHome/blob/a8431297f7dc12332088d7045224e31fd327e909/client/src/components/Settings/Dns/Cache/Form.tsx#L22

Alternative solution

No response

[k03mad]

I just want to add why this is a useful feature:

I've used another DNS service that has the option to rewrite the minimum TTL.
On a not very stable mobile network, it feels subjectively more stable and faster when using the Android private DNS feature with a server that returns, for example, a 1-hour minimum TTL for all domains (due to the longer cache duration and, consequently, a lower number of DNS requests).

And I don't have any problems with such long TTL hardcode.