Pull request: client: upd i18n

Updates #2643.

Squashed commit of the following:

commit 4f6098ce31fb3e9e81d66ca613e02c9573763e13
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Mar 29 14:01:33 2021 +0300

    client: upd i18n

client/src/__locales/en.json

@@ -594,4 +594,4 @@
     "adg_will_drop_dns_queries": "AdGuard Home will be dropping all DNS queries from this client.",
     "client_not_in_allowed_clients": "The client is not allowed because it is not in the \"Allowed clients\" list.",
     "experimental": "Experimental"
-}
+}