Refactor admin dashboard loader and update translations

The admin-dashboard.loader file was refactored to use a newly created AdminDashboardService. This service encapsulates the logic for fetching dashboard data. Translations related to account settings, privacy policy, terms of service, and cookie policy were updated for better readability. Changes also include minor reorganizing of code files for clearer structure.

packages/features/admin/src/lib/server/utils/admin-action.ts

@@ -0,0 +1,22 @@
+import { notFound } from 'next/navigation';
+
+import { getSupabaseServerActionClient } from '@kit/supabase/server-actions-client';
+
+import { isSuperAdmin } from './is-super-admin';
+
+/**
+ * @name adminAction
+ * @description Wrap a server action to ensure the user is a super admin.
+ * @param fn
+ */
+export function adminAction<Args, Response>(fn: (params: Args) => Response) {
+  return async (params: Args) => {
+    const isAdmin = await isSuperAdmin(getSupabaseServerActionClient());
+
+    if (!isAdmin) {
+      notFound();
+    }
+
+    return fn(params);
+  };
+}

packages/features/admin/src/lib/server/utils/is-super-admin.ts

@@ -0,0 +1,24 @@
+import { SupabaseClient } from '@supabase/supabase-js';
+
+import { Database } from '@kit/supabase/database';
+
+/**
+ * @name isSuperAdmin
+ * @description Check if the current user is a super admin.
+ * @param client
+ */
+export async function isSuperAdmin(client: SupabaseClient<Database>) {
+  const { data, error } = await client.auth.getUser();
+
+  if (error) {
+    throw error;
+  }
+
+  if (!data.user) {
+    return false;
+  }
+
+  const appMetadata = data.user.app_metadata;
+
+  return appMetadata?.role === 'super-admin';
+}