Tailwind CSS 4 Migration (#100)

* Updated to TailwindCSS v4
* Moved CSS module to its own CSS file because of lightingcss strict validation
* Respect next parameter in middleware
* Updated all packages. 
* Split CSSs for better organization.
* Redesigned theme and auth pages
* Improved pill and header design
* Formatted files using Prettier
* Better footer layout
* Better auth layout
* Bump version of the repository to 2.0.0

apps/web/app/(marketing)/docs/layout.tsx

@@ -14,7 +14,7 @@ async function DocsLayout({ children }: React.PropsWithChildren) {
 
   return (
     <SidebarProvider
-      style={{ '--sidebar-width': '20em' } as React.CSSProperties}
+      style={{ '--sidebar-width': '18em' } as React.CSSProperties}
       className={'h-[calc(100vh-72px)] overflow-y-hidden lg:container'}
     >
       <DocsNavigation pages={tree} />