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/lib/fonts.ts

@@ -42,7 +42,7 @@ export function getFontsClassName(theme?: string) {
     [],
   );
 
-  return cn('min-h-screen bg-background antialiased', ...font, {
+  return cn('bg-background min-h-screen antialiased', ...font, {
     dark,
     light,
   });