Upgrade @metamask/app-metadata-controller to version 2.0.0

A new major version of `@metamask/app-metadata-controller`, 2.0.0, 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.

Search the repository's package manifests for @metamask/app-metadata-controller and inspect how the current version is referenced. Upgrade it to 2.0.0 if present, then run the project's existing validation checks; done means the dependency is updated without introducing failures.

Written by the indexing model from the issue text.