User story

As an Editor, I want the chooser dialog to remember my last selection for each workspace, so that I can select asset faster.

Business value: Speed. Better editorial user experience. Currently, the Asset chooser always starts at the root. When you add multiple assets to a page or story finding the same subfolder again is cumbersome and slow.

Reproduce
In the Stories app, open lost-and-found-in-swiss-alps and click "browse" to select a different image.
The assets chooser opens with the tree unfolded at the right place but the previous selected item is not highlighted.

Acceptance criteria

• Chooser dialogs open at the last-selected asset
• If the last location folder/node was moved or deleted, open the data source root instead. (Note: The root is configurable in the rootpath property.)
• Store the last-used location for all workspaces (website, tours, contacts...), not only for DAM
• Store the last-used location when switching btw apps and sub apps
• Only clear the last-used location when user logs out
• Ability to remember the last used location is a user preference. Provide a "Remember last location" checkbox option in the Preferences tab of the user profile dialog. The preference is true by default.