docs(account): update user management URLs and SSO disconnect flow

Replace legacy /users/edit links with /users/settings/profile and
/users/settings/security. Rewrite the SSO disconnect steps to match the
new Password and Login provider cards, and add a note about lock-out
prevention when a password is not set.

DX-1074

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: matt423

src/pages/docs/platform/account/team.mdx

@@ -77,10 +77,10 @@ You must be an account owner or admin to remove users:
 ## Delete your profile or leave an account <a id="leave"/>
 
 1. Log in to your [account](https://ably.com/accounts/any).
-2. Go to [My Settings](https://ably.com/users/edit).
+2. Go to [Profile settings](https://ably.com/users/settings/profile).
 3. [Disconnect SSO provider](#sso) if you use SSO to log in.
-4. Scroll to "Want to delete your profile?"
-5. Click "Start" to remove yourself from this account.
+4. Scroll to the **Delete profile** section.
+5. Click **Delete profile** to remove yourself from this account.
 
 <Aside data-type='important'>
 Account owners: Deleting your profile will delete the entire account and all data. You must first [transfer ownership](https://faqs.ably.com/can-i-change-my-ably-account-owner) to another user before deleting your profile.
@@ -110,10 +110,13 @@ If you use an SSO login you'll see a "Contact us" link instead of a "Start" butt
 
 If you use SSO to log in, you must set a password and disconnect your SSO provider before closing your account:
 
-1. Log in to your [account](https://ably.com/accounts/any).
-2. Navigate to Account then [My Settings](https://ably.com/users/edit).
-3. In the Password section, click "Change your password".
-4. Click "Update my personal settings" to save the changes.
-5. Scroll to the Login provider section.
-6. Click "remove connection" next to the SSO provider you want to disconnect.
-7. Return to the instructions above to [close your account](#close).
+1. Log in to your [account](https://ably.com/accounts/any) using your current SSO method.
+2. Go to [Security](https://ably.com/users/settings/security).
+3. In the **Password** card, click **Create password** and enter a new password in the dialog.
+4. Scroll to the **Login provider** card.
+5. Click **Disconnect** next to the SSO provider you want to disconnect and confirm in the dialog.
+6. Return to the instructions above to [close your account](#close).
+
+<Aside data-type='note'>
+You cannot disconnect your last remaining SSO provider unless a password is set on your account.
+</Aside>