Investigate using more granular error boundaries for page-level handling

[mikewilli]

Related to this error #9700, we noticed that an error in the Results page causes the app to crash, and you need to refresh the page to get back into Experimenter. This seems like it should be handled by the error boundary, but per this slack thread, it seems like we may need to add error boundaries for each page-level component instead of just at the app level.

The goal is to allow each page to handle errors more gracefully and not crash due to an error.

┆Issue is synchronized with this Jira Task