Pull request 2019: 1700-update-static-lease

Updates #1700.

Squashed commit of the following:

commit b3fdf0a492e38be594500b1db4da20bf70cd7096
Merge: 507cb9bc7 4479b32ad
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Thu Oct 5 12:53:30 2023 +0300

    Merge branch 'master' into 1700-update-static-lease

commit 507cb9bc7bec9884ce7db2f42688d0a409015756
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Oct 4 18:54:06 2023 +0300

    all: upd chlog

commit 0736b97bdd652a3da13bce4177c64daa0a3da2af
Author: Ildar Kamalov <ik@adguard.com>
Date:   Wed Oct 4 16:05:35 2023 +0300

    client: fix update action

commit 351986bb03b1c525f00b1e7cd44a3dab8dd9eb97
Author: Ildar Kamalov <ik@adguard.com>
Date:   Wed Oct 4 16:01:38 2023 +0300

    client: update static lease

commit 3c328283c8374480132a9907e1738978c0b0384f
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Thu Sep 28 20:06:29 2023 +0300

    dhcpd: fix err msg

commit 5b2f8f51b427ae07b227357fa3cc073a3278079b
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Thu Sep 28 16:28:07 2023 +0300

    dhcpd: imp code

commit a9d24e816f602ad207e42124ddbb56ecdb0e03f6
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Sep 27 17:43:04 2023 +0300

    all: add tests

commit 453785796191179ef4136b613f4dd8665703b364
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Sep 26 20:14:17 2023 +0300

    dhcpd: update static lease

CHANGELOG.md

@@ -25,9 +25,11 @@ NOTE: Add new changes BELOW THIS COMMENT.
 
 ### Added
 
+- Ability to edit static leases on *DHCP settings* page ([#1700]).
 - Ability to specify for how long clients should cache a filtered response,
   using the *Blocked response TTL* field on the *DNS settings* page ([#4569]).
 
+[#1700]: https://github.com/AdguardTeam/AdGuardHome/issues/1700
 [#4569]: https://github.com/AdguardTeam/AdGuardHome/issues/4569
 
 ### Fixed