Fix cookie sameSite attribute (#443)

* fix: set i18n cookie SameSite=lax to survive cross-domain redirects

The i18n language cookie was being reset to default after Supabase
email verification redirects because the cookie was using the default
SameSite=strict setting which doesn't survive cross-domain navigation.

Changes:
- Set cookieOptions.sameSite to 'lax' to allow cookie to persist through
  cross-domain redirects (like Supabase auth flows)
- Set secure flag dynamically based on HTTPS protocol
- Set cookie path to '/' for site-wide availability
- Set cookie expiration to 1 year
- Change detection order to prioritize cookie over htmlTag

Bumps version to 2.23.4

* fix: set theme cookie SameSite=lax to survive cross-domain redirects

Apply the same fix as the i18n cookie to the theme cookie. The theme
preference cookie was also missing SameSite=lax attribute, causing it
to potentially be lost during cross-domain authentication flows.

Changes:
- Add SameSite=lax to theme cookie
- Add Secure flag conditionally based on HTTPS protocol
- Fix typo: setCookeTheme -> setCookieTheme

* fix: correct SameSite casing and add security to sidebar cookie

- Fix SameSite value to use proper capitalization (Lax instead of lax)
  for better browser compatibility
- Add SameSite=Lax and conditional Secure flag to sidebar state cookie
- Add typeof window check for defensive programming

---------

Co-authored-by: Claude <noreply@anthropic.com>

packages/ui/src/shadcn/sidebar.tsx

@@ -96,7 +96,8 @@ const SidebarProvider: React.FC<
       _setOpen(value);
 
       // This sets the cookie to keep the sidebar state.
-      document.cookie = `${SIDEBAR_COOKIE_NAME}=${open}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`;
+      const secure = typeof window !== 'undefined' && window.location.protocol === 'https:';
+      document.cookie = `${SIDEBAR_COOKIE_NAME}=${open}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}; SameSite=Lax${secure ? '; Secure' : ''}`;
     },
     [setOpenProp, open],
   );