ui: Add `Service.Partition` as available variable for dashboard urls (#11654)

.changelog/11654.txt

@@ -0,0 +1,3 @@
+```release-note:feature
+ui: Include `Service.Partition` into available variables for `dashboard_url_templates`
+```

ui/packages/consul-ui/app/templates/dc/services/show.hbs

@@ -193,6 +193,7 @@ as |items item dc|}}
                     Service=(hash
                       Name=item.Service.Service
                       Namespace=(or item.Service.Namespace '')
+                      Partition=(or item.Service.Partition '')
                     )
                   )
                 }}

ui/packages/consul-ui/app/templates/dc/services/show/topology.hbs

@@ -109,6 +109,7 @@ as |nspace dc items topology|}}
             Service=(hash
               Name=items.firstObject.Name
               Namespace=(or items.firstObject.Namespace '')
+              Partition=(or items.firstObject.Partition '')
             )
           )
         }}

website/content/docs/agent/options.mdx

@@ -2191,6 +2191,8 @@ bind_addr = "{{ GetPrivateInterfaces | include \"network\" \"10.0.0.0/8\" | attr
 
       - `{{Service.Name}}` - Replaced with the current service's name.
       - `{{Service.Namespace}}` - Replaced with the current service's namespace or empty if namespaces are not enabled.
+      - `{{Service.Partition}}` - Replaced with the current service's admin
+        partition or empty if admin partitions are not enabled.
       - `{{Datacenter}}` - Replaced with the current service's datacenter.
 
 - `ui_dir` - **This field is deprecated in Consul 1.9.0. See the [`ui_config.dir`](#ui_config_dir) field instead.**

website/content/docs/connect/observability/ui-visualization.mdx

@@ -104,7 +104,8 @@ ui_config {
   dashboard_url_templates {
     service = "https://grafana.example.com/d/lDlaj-NGz/
       service-overview?orgId=1&var-service={{Service.Name}}&
-      var-namespace={{Service.Namespace}}&var-dc={{Datacenter}}"
+      var-namespace={{Service.Namespace}}&
+      var-partition={{Service.Partition}}&var-dc={{Datacenter}}"
   }
 }
 ```