Update package.json for turbopack support, enhance AppSidebar with new icons, and add Textarea and auth-utils components

- Modified the dev script in package.json to use turbopack for improved development performance.
- Enhanced AppSidebar by adding new icons for navigation items, improving visual clarity.
- Introduced a new Textarea component for consistent styling and functionality across forms.
- Added auth-utils module to fetch the current user session, streamlining user authentication processes.

lib/auth-utils.ts

@@ -0,0 +1,10 @@
+"use server";
+import { headers } from "next/headers";
+import { auth } from "./auth";
+
+export async function getCurrentUser() {
+	const session = await auth.api.getSession({
+		headers: await headers(),
+	});
+	return session?.user;
+}