Fix cron/notice tables on admin

templates/admin/cron.tmpl

@@ -3,7 +3,7 @@
 </h4>
 <div class="ui attached table segment">
 	<form method="post" action="{{AppSubUrl}}/admin">
-		<table class="ui very basic striped table">
+		<table class="ui very basic striped table unstackable">
 			<thead>
 				<tr>
 					<th></th>

templates/admin/monitor.tmpl

@@ -8,7 +8,7 @@
 			{{.i18n.Tr "admin.monitor.queues"}}
 		</h4>
 		<div class="ui attached table segment">
-			<table class="ui very basic striped table">
+			<table class="ui very basic striped table unstackable">
 				<thead>
 					<tr>
 						<th>{{.i18n.Tr "admin.monitor.queue.name"}}</th>

templates/admin/notice.tmpl

@@ -7,7 +7,7 @@
 			{{.i18n.Tr "admin.notices.system_notice_list"}} ({{.i18n.Tr "admin.total" .Total}})
 		</h4>
 		<div class="ui attached table segment">
-			<table id="notice-table" class="ui very basic select selectable table">
+			<table id="notice-table" class="ui very basic select selectable table unstackable">
 				<thead>
 					<tr>
 						<th></th>