chore: Add Manage>Delete button to host catalogs

ui/core/app/templates/scopes/scope/projects/project/host-catalogs/host-catalog.hbs

@@ -8,6 +8,18 @@
     <h2>{{t "resources.host-catalog"}}</h2>
   </page.header>
 
+  <page.actions>
+    <Rose::Dropdown @text="{{t 'form.label.manage'}}" @dropdownRight={{true}} as |dropdown|>
+      <dropdown.button
+        @style="danger"
+        @disabled={{@model.canSave}}
+        {{on "click" (route-action "delete" @model)}}
+      >
+        {{t 'actions.delete-host-catalog'}}
+      </dropdown.button>
+    </Rose::Dropdown>
+  </page.actions>
+
   <page.navigation>
     <Rose::Nav::Tabs as |nav|>
       <nav.link @route='scopes.scope.projects.project.host-catalogs.host-catalog.index'>

ui/core/app/templates/scopes/scope/projects/project/host-catalogs/host-catalog/index.hbs

@@ -3,11 +3,3 @@
   @submit={{route-action "save" @model}}
   @cancel={{route-action "cancel" @model}}
 />
-<Rose::Separator />
-<Rose::Button
-  @style="warning"
-  @disabled={{@model.canSave}}
-  {{on "click" (route-action "delete" @model)}}
->
-  {{t 'actions.delete'}}
-</Rose::Button>