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

packages/features/auth/src/components/sign-up-methods-container.tsx

@@ -55,7 +55,17 @@ export function SignUpMethodsContainer(props: {
       </If>
 
       <If condition={props.providers.oAuth.length}>
-        <Separator />
+        <div className="relative">
+          <div className="absolute inset-0 flex items-center">
+            <Separator />
+          </div>
+
+          <div className="relative flex justify-center text-xs uppercase">
+            <span className="bg-background text-muted-foreground px-2">
+              <Trans i18nKey="auth:orContinueWith" />
+            </span>
+          </div>
+        </div>
 
         <OauthProviders
           enabledProviders={props.providers.oAuth}