FEATURE: admin can disable flags (#27171)

UI for admins to disable system flags.

app/assets/javascripts/admin/addon/components/admin-flags.gjs

@@ -0,0 +1,26 @@
+import Component from "@glimmer/component";
+import { inject as service } from "@ember/service";
+import i18n from "discourse-common/helpers/i18n";
+import AdminFlagItem from "admin/components/admin-flag-item";
+
+export default class AdminFlags extends Component {
+  @service site;
+  flags = this.site.flagTypes;
+
+  <template>
+    <div class="container admin-flags">
+      <h1>{{i18n "admin.flags.title"}}</h1>
+      <table class="flags grid">
+        <thead>
+          <th>{{i18n "admin.flags.description"}}</th>
+          <th>{{i18n "admin.flags.enabled"}}</th>
+        </thead>
+        <tbody>
+          {{#each this.flags as |flag|}}
+            <AdminFlagItem @flag={{flag}} />
+          {{/each}}
+        </tbody>
+      </table>
+    </div>
+  </template>
+}