Create an error boundary for page-specific errors

[jerelmiller]

When an error is thrown on a particular page, the error bubbles up to the root error boundary, which removes all the app chrome.

For a better experience, errors thrown on page renders should only bubble up to the page's nearest <Outlet />. This should allow the app to continue displaying the app's chrome while showing the error message. This will allow the user to navigate to other parts of the app without being completely blocked.