rke1 deprecation banner on create and edit pages

Author: Mo Mesgin

app/authenticated/cluster/edit/template.hbs

@@ -4,6 +4,12 @@
   </h1>
 </section>
 
+<BannerMessage
+  @color="bg-warning"
+  @icon="icon-alert"
+  @message={{t "clustersPage.rke1DeprecationMessage" htmlSafe=true}}
+/>
+
 <CruCluster
   @applyClusterTemplate={{not (is-empty clusterTemplateRevision)}}
   @clusterTemplateRevisionId={{mut clusterTemplateRevision}}

lib/global-admin/addon/clusters/new/template.hbs

@@ -20,5 +20,10 @@
   </h1>
 </section>
 <section class="cluster-launch">
+  <BannerMessage
+    @color="bg-warning"
+    @icon="icon-alert"
+    @message={{t "clustersPage.rke1DeprecationMessage" htmlSafe=true}}
+  />
   {{outlet}}
 </section>

translations/en-us.yaml

@@ -1426,6 +1426,7 @@ clustersPage:
       label: "Add Cluster - Select Cluster Type"
     template:
       label: "Add Cluster - Select RKE Template"
+  rke1DeprecationMessage: 'Rancher Kubernetes Engine (RKE, RKE1) will reach end of life on July 31, 2025. Rancher 2.12.0 and later will no longer support provisioning or managing downstream RKE1 clusters. We recommend replatforming RKE1 clusters to RKE2 to ensure continued support and security updates. Learn more about the transition <a href="https://www.suse.com/support/kb/doc/?id=000021518" target="_blank" rel="noopener noreferrer nofollow">here</a>.'
 
 clusterRibbonNav:
   title: Recent Clusters