FIX: system badges can be disabled (#28169)

A previous commit mistakenly assumed system badges couldn't be disabled.

app/assets/javascripts/admin/addon/templates/admin-badges/show.hbs

@@ -11,14 +11,8 @@
     <span class="badge-display-name">{{data.name}}</span>
   </h1>
 
-  {{#if this.readOnly}}
-    <form.Alert @icon="info-circle">
-      {{i18n "admin.badges.disable_system"}}
-    </form.Alert>
-  {{else}}
   <form.Field
     @name="enabled"
-      @disabled={{this.readOnly}}
     @validation="required"
     @title={{i18n "admin.badges.status"}}
     as |field|
@@ -28,7 +22,6 @@
       @noLabel={{i18n "admin.badges.disabled"}}
     />
   </form.Field>
-  {{/if}}
 
   {{#if this.readOnly}}
     <form.Container data-name="name" @title={{i18n "admin.badges.name"}}>

config/locales/client.en.yml

@@ -6931,7 +6931,6 @@ en:
             confirm: "Yes, update password policy"
 
       badges:
-        disable_system: This badge is a system badge and cannot be disabled and/or deleted.
         status: Status
         title: Badges
         new_badge: New Badge

spec/system/admin_badges_spec.rb

@@ -16,7 +16,7 @@ describe "Admin Badges Page", type: :system do
 
       badge = Badge.find(Badge::Autobiographer)
 
-      expect(form).to have_an_alert(I18n.t("admin_js.admin.badges.disable_system"))
+      expect(form.field("enabled")).to be_enabled
       expect(form.field("badge_type_id")).to be_disabled
       expect(form.field("badge_type_id")).to have_value(BadgeType::Bronze.to_s)
       expect(form.field("badge_grouping_id")).to be_disabled