refactor: large refactor around monorepo

Just a commit point while I'm testing stuff. Already decided at this
point to simplify and revert away from PayloadCMS.

apps/payload/next.config.mjs

@@ -0,0 +1,31 @@
+import { withPayload } from "@payloadcms/next/withPayload";
+
+/** @type {import("next").NextConfig} */
+const config = {
+  output: "standalone",
+  basePath: "/admin",
+  reactStrictMode: true,
+  images: {
+    remotePatterns: [
+      {
+        protocol: "https",
+        hostname: "img.walters.to",
+      },
+      {
+        protocol: "https",
+        hostname: "img.xevion.dev",
+      },
+    ],
+  },
+  webpack: (webpackConfig) => {
+    webpackConfig.resolve.extensionAlias = {
+      ".cjs": [".cts", ".cjs"],
+      ".js": [".ts", ".tsx", ".js", ".jsx"],
+      ".mjs": [".mts", ".mjs"],
+    };
+
+    return webpackConfig;
+  },
+};
+
+export default withPayload(config, { devBundleServerPackages: false });