Upgrade @metamask/account-tree-controller to version 1.0.0

A new major version of `@metamask/account-tree-controller`, 1.0.0, is now available. This issue has been assigned to you and your team because you code-own this package in the `core` repo. If this package is present in this project, please prioritize upgrading it soon to unblock new features and bugfixes.

First check whether @metamask/account-tree-controller is present in the project, then locate its dependency declaration and update it to version 1.0.0. Confirm that the dependency is resolved at the requested version and that the project still installs and passes its relevant checks.

Written by the indexing model from the issue text.