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)/layout.tsx

@@ -2,7 +2,6 @@ import { getSupabaseServerClient } from '@kit/supabase/server-client';
 
 import { SiteFooter } from '~/(marketing)/_components/site-footer';
 import { SiteHeader } from '~/(marketing)/_components/site-header';
-import { BackgroundHue } from '~/components/background-hue';
 import { withI18n } from '~/lib/i18n/with-i18n';
 
 async function SiteLayout(props: React.PropsWithChildren) {
@@ -18,7 +17,6 @@ async function SiteLayout(props: React.PropsWithChildren) {
 
       {props.children}
 
-      <BackgroundHue />
       <SiteFooter />
     </div>
   );