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/home/(user)/_components/home-sidebar.tsx

@@ -29,7 +29,7 @@ export function HomeSidebar(props: HomeSidebarProps) {
   return (
     <Sidebar>
       <SidebarHeader className={'h-16 justify-center'}>
-        <div className={'flex items-center justify-between space-x-2'}>
+        <div className={'flex items-center justify-between gap-x-3'}>
           <If
             condition={featuresFlagConfig.enableTeamAccounts}
             fallback={