docs: fix error in sveltekit signout example (#11156)

Author: andrewdcato

docs/pages/getting-started/session-management/login.mdx

@@ -244,7 +244,7 @@ To use the SvelteKit form action for signing out, we can use the `SignOut` compo
   <nav>
     <SignOut>
       <span slot="submitButton">Signout</span>
-    </SignIn>
+    </SignOut>
   </nav>
 </header>
 ```