show RemoteVolumes/EcVolumes only if it is not empty

weed/server/volume_server_ui/templates.go

@@ -25,6 +25,7 @@ var funcMap = template.FuncMap{
 	"join":                 join,
 	"bytesToHumanReadable": util.BytesToHumanReadable,
 	"percentFrom":          percentFrom,
+	"isNotEmpty":           util.IsNotEmpty,
 }
 
 //go:embed volume.html

weed/server/volume_server_ui/volume.html

@@ -133,6 +133,7 @@
         </table>
     </div>
 
+    {{ if isNotEmpty .RemoteVolumes }}
     <div class="row">
         <h2>Remote Volumes</h2>
         <table class="table table-striped">
@@ -162,7 +163,9 @@
             </tbody>
         </table>
     </div>
+    {{ end }}
 
+    {{ if isNotEmpty .EcVolumes }}
     <div class="row">
         <h2>Erasure Coding Shards</h2>
         <table class="table table-striped">
@@ -188,7 +191,7 @@
             </tbody>
         </table>
     </div>
-
+    {{ end }}
 </div>
 </body>
 </html>