Improve admin urls (#7370)

* Improve Master and Volume URLs in admin dashboard

- Add clickable URL for master node.
- Refactor Volume server URL to use PublicURL if set. 'address' is used
  as fallback.

* Make volume servers show in consistent order

- Sort servers by name to ensure predictable order after each refresh.

* address comment

---------

Co-authored-by: chrislu <chris.lu@gmail.com>

weed/admin/view/app/admin.templ

@@ -172,7 +172,12 @@ templ Admin(data dash.AdminData) {
                                 <tbody>
                                     for _, master := range data.MasterNodes {
                                         <tr>
-                                            <td>{master.Address}</td>
+                                            <td>
+                                                <a href={templ.SafeURL(fmt.Sprintf("http://%s/ui/index.html", master.Address))} target="_blank">
+                                                    {master.Address}
+                                                    <i class="fas fa-external-link-alt ms-1 text-muted"></i>
+                                                </a>
+                                            </td>
                                             <td>
                                                 if master.IsLeader {
                                                     <span class="badge bg-primary">Leader</span>
@@ -275,8 +280,8 @@ templ Admin(data dash.AdminData) {
                                         <tr>
                                             <td>{vs.ID}</td>
                                             <td>
-                                                <a href={templ.SafeURL(fmt.Sprintf("http://%s/ui/index.html", vs.PublicURL))} target="_blank">
-                                                    {vs.Address}
+                                                <a href={templ.SafeURL(fmt.Sprintf("http://%s/ui/index.html", vs.GetDisplayAddress()))} target="_blank">
+                                                    {vs.GetDisplayAddress()}
                                                     <i class="fas fa-external-link-alt ms-1 text-muted"></i>
                                                 </a>
                                             </td>