Navigating to out of scope websites inside an installed PWA results in a confusing experience.
The window title changes to the new page's title but maintains the app's icon and there are no buttons to go back to the app (users would have to use a keyboard or mouse shortcut). Furthermore, it's possible that the out of scope website wasn't designed to work without browser ui, e.g. it's missing back buttons, refresh, etc.

We should introduce UI similar to that of CCT so that it's easier for users to use the out of scope website and go back to the app when desired.

In the meantime we should bounce out of scope navigations back to the main browser window.