Add EmailTemplate model and CRUD UI in admin console

src/app/(admin)/admin/email-templates/edit/[id]/page.tsx

@@ -0,0 +1,6 @@
+import EditEmailTemplate from '../../components/EditEmailTemplate';
+
+export default async function EditEmailTemplatePage(props: { params: Promise<{ id: string }> }) {
+    const { id } = await props.params;
+    return <EditEmailTemplate id={id} />;
+}