feat: integrate payload cms to landing page (#25)

* feat: integrate payload cms to landing page

* feat: add payload configuration and update TypeScript target

* fix: update TypeScript paths for payload configuration

* refactor: update config import paths to use local payload.config

* fix: update quotation marks for testimonials to use HTML entities

* fix: include withPayload in Next.js plugins for proper configuration

apps/landing/src/app/(payload)/api/[...slug]/route.ts

@@ -0,0 +1,19 @@
+/* THIS FILE WAS GENERATED AUTOMATICALLY BY PAYLOAD. */
+/* DO NOT MODIFY IT BECAUSE IT COULD BE REWRITTEN AT ANY TIME. */
+import '@payloadcms/next/css';
+import {
+  REST_DELETE,
+  REST_GET,
+  REST_OPTIONS,
+  REST_PATCH,
+  REST_POST,
+  REST_PUT,
+} from '@payloadcms/next/routes';
+import config from '../../../../payload.config';
+
+export const GET = REST_GET(config);
+export const POST = REST_POST(config);
+export const DELETE = REST_DELETE(config);
+export const PATCH = REST_PATCH(config);
+export const PUT = REST_PUT(config);
+export const OPTIONS = REST_OPTIONS(config);