Pull request: 5251-close-ups

Merge in DNS/adguard-home from 5251-close-ups to master

Updates #5251.

Squashed commit of the following:

commit 98a4a9a45ae702df3cf26cab0b28bd83a6556085
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Dec 14 18:31:17 2022 +0300

    all: log changes better

commit af25803925c15ba2d9b07865c3deb58033006c52
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Dec 14 18:24:42 2022 +0300

    all: log changes

commit 65bb12d8b6d6bd2e37ee83bc4aca63aa573da63a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Dec 14 18:15:41 2022 +0300

    all: upd dnsproxy

commit 24039cd7f9c64ee5d9806e1146dbd1e76c298a20
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Dec 14 17:19:15 2022 +0300

    dnsforward: imp code, docs

commit a40bbd55267c9904c14b89568408f86ccb3ef6c9
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Dec 14 16:43:10 2022 +0300

    dnsforward: log errs instead of return

CHANGELOG.md

@@ -34,7 +34,13 @@ See also the [v0.107.21 GitHub milestone][ms-v0.107.21].
   to update the URLs to the new ones.  Custom filters added by users themselves
   do not require re-adding.
 
+### Fixed
+
+- Errors popping up during updates of settings, which could sometimes cause the
+  server to stop responding ([#5251]).
+
 [#5238]: https://github.com/AdguardTeam/AdGuardHome/issues/5238
+[#5251]: https://github.com/AdguardTeam/AdGuardHome/issues/5251