Trust workspace dialog does not go away after the trusted folders setting is updated

[rebornix]

Testing #122252

• Open two workspaces A and B, trust A but not B
• Workspace B then has a modal dialog
• Add workspace B into trusted setting from workspace A
• In workspace B, all components related to trust are updated, but the modal dialog is still there.

[sbatten]

After discussion, dialogs don't really have dismissal concept because it would be weird to have a dialog appear and flicker away. Also, most scenarios where this presents itself are artificial from a testing mindset. The mainstream scenario is after an update/restart, restoring multiple windows. To address this, I will only show the dialog once the window is focused. This means trust will be evaluated at focus time, not restart time and if you trust B before navigating to it, the dialog will not show.