docs: correct server-side-auth template for change of email (#18410)

* docs: correct server-side-auth template for change of email

* make Confirm Change of Email URL pattern match others

---------

Co-authored-by: Chandrasekhar Ramakrishnan <ciyer+air@illposed.com>

apps/docs/pages/guides/auth/server-side/email-based-auth-with-pkce-flow-for-ssr.mdx

@@ -283,7 +283,11 @@ Let's update the URL in our email templates to point to our new confirmation end
 <h2>Confirm Change of Email</h2>
 
 <p>Follow this link to confirm the update of your email from {{ .Email }} to {{ .NewEmail }}:</p>
-<p><a href="{{ .ConfirmationURL }}">Change Email</a></p>
+<p>
+  <a href="{{ .SiteURL }}/auth/confirm?token_hash={{ .TokenHash }}&type=email_change">
+    Change Email
+  </a>
+</p>
 ```
 
 **Reset Password template**