Add account management documentation (#59)

* Add account management documentation page

Documents how to access account settings and delete an account in Velopack Flow, including prerequisites (delete projects, cancel subscriptions) and the effect on team memberships.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Update account deletion docs: owned teams/projects auto-deleted

Owned teams and all their projects are now automatically deleted when
an account is deleted. The only remaining prerequisite is cancelling
active subscriptions on owned teams.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Keboo

docs/distributing/Flow/account.mdx

@@ -0,0 +1,31 @@
+---
+sidebar_label: Account Management
+sidebar_position: 5
+---
+
+# Account Management
+
+## Account Settings
+
+To access your account settings in the <FlowLink /> dashboard, click your profile avatar or username in the top-right corner and select **Account Settings**. From here you can update your display name, email address, and manage API keys.
+
+## Deleting Your Account
+
+To permanently delete your account, navigate to **Account Settings** and scroll to the **Danger Zone** section, then click **Delete Account**.
+
+Before your account can be deleted, the following prerequisite must be met:
+
+### Cancel Active Subscriptions
+
+If you are the **Owner** of any team with an active paid subscription, you must cancel that subscription first. Go to the team's **Billing** page and cancel the subscription before proceeding.
+
+### What Happens to Your Teams
+
+When your account is deleted:
+
+- **Owned teams** (teams where you hold the Owner role) and all of their projects are **deleted automatically** — you do not need to manually remove projects beforehand.
+- **Non-owned teams** (teams where you are a member but not the Owner) are **not affected** — you are simply removed as a member and the team continues to exist.
+
+:::caution
+Account deletion is permanent and cannot be undone. Ensure you have exported or transferred any data you wish to keep before proceeding.
+:::