Merge: + client: handle client block and unblock from the top clients table

Closes #896

Squashed commit of the following:

commit 776de2ae0a62823b8968cff79a9fa7ba350d7f1c
Author: Ildar Kamalov <i.kamalov@adguard.com>
Date:   Thu Jan 30 11:13:41 2020 +0300

    - client: fix normalizeTextarea and blocking button

commit 399e6bc3893093632b09247eaf6493521a668c84
Author: Ildar Kamalov <i.kamalov@adguard.com>
Date:   Wed Jan 29 17:19:50 2020 +0300

    + client: handle client block and unblock from the top clients table

client/src/components/Dashboard/BlockedDomains.js

@@ -58,7 +58,7 @@ const BlockedDomains = ({
                 noDataText={t('no_domains_found')}
                 minRows={6}
                 defaultPageSize={100}
-                className="-striped -highlight card-table-overflow stats__table"
+                className="-highlight card-table-overflow stats__table"
             />
         </Card>
     );