Fix double border in system status table (#31363) (#31401)

Backport #31363 by silverwind

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

templates/admin/dashboard.tmpl

@@ -76,9 +76,11 @@
 			{{ctx.Locale.Tr "admin.dashboard.system_status"}}
 		</h4>
 		{{/* TODO: make these stats work in multi-server deployments, likely needs per-server stats in DB */}}
-		<div class="no-loading-indicator tw-hidden"></div>
-		<div hx-get="{{$.Link}}/system_status" hx-swap="morph:innerHTML" hx-trigger="every 5s" hx-indicator=".no-loading-indicator" class="ui attached table segment">
-			{{template "admin/system_status" .}}
+		<div class="ui attached table segment">
+			<div class="no-loading-indicator tw-hidden"></div>
+			<div hx-get="{{$.Link}}/system_status" hx-swap="morph:innerHTML" hx-trigger="every 5s" hx-indicator=".no-loading-indicator">
+				{{template "admin/system_status" .}}
+			</div>
 		</div>
 	</div>
 {{template "admin/layout_footer" .}}