fix: typo in account linking mode description (#2535)

* Fix typo in account linking mode description

verify_with_existing_credential should be confirm_with_existing_credential based on API Spec.

* chore: apply prettier formatting

Prettier realigned the markdown table column spacing in
95_account-linking.mdx after the wire-value correction.

Author: KT-Doan

docs/kratos/social-signin/95_account-linking.mdx

@@ -227,10 +227,10 @@ import TabItem from "@theme/TabItem"
 
 The `account_linking_mode` setting accepts the following values:
 
-| Value                             | Description                                                                           |
-| :-------------------------------- | :------------------------------------------------------------------------------------ |
-| `verify_with_existing_credential` | Default. Users must verify their identity with an existing credential before linking. |
-| `automatic`                       | Automatically link accounts when the provider verifies a matching email address.      |
+| Value                              | Description                                                                           |
+| :--------------------------------- | :------------------------------------------------------------------------------------ |
+| `confirm_with_existing_credential` | Default. Users must verify their identity with an existing credential before linking. |
+| `automatic`                        | Automatically link accounts when the provider verifies a matching email address.      |
 
 #### Security requirements for automatic linking