Add TurboPack details to README and update Next.js config

The README.md was updated with information about TurboPack which is now used by default and still experimental. The Next.js configuration was also modified to support this. Instructions on how to switch back to the default bundler in case of any issues were added as well.

README.md

@@ -106,6 +106,12 @@ This command will run the web application.
 
 Please refer to `apps/web/README.md` for more information about the web application.
 
+#### Turbopack
+
+Makerkit uses Turbopack by default. Turbopack is the new bundler for Next.js - and it is still experimental. It is faster, but it may have some issues.
+
+If you encounter any issues, you can switch to the default Next.js by removing the flag `--turbo` from the `dev` command in `apps/web/package.json`.
+
 ### 3. Start the Supabase server
 
 To start the Supabase server, you can use the following command:

apps/web/next.config.mjs

@@ -26,7 +26,6 @@ const config = {
   reactStrictMode: true,
   /** Enables hot reloading for local packages without a build step */
   transpilePackages: INTERNAL_PACKAGES,
-  pageExtensions: ['ts', 'tsx'],
   images: {
     remotePatterns: getRemotePatterns(),
   },
@@ -34,6 +33,9 @@ const config = {
     mdxRs: true,
     taint: true,
     instrumentationHook: true,
+    turbo: {
+      resolveExtensions: ['.ts', '.tsx', '.js', '.jsx'],
+    },
     optimizePackageImports: [
       'recharts',
       'lucide-react',