Ramp should fail gracefully when it encounters an error

[cjcolvar]

We've encountered a number of bugs in ramp or avalon that result in an unusable and confusing interface.
See samvera-labs/ramp#258, #5385, #5350

Current behavior

When ramp encounters an issue, all of ramp disappears and the content section of the page is just white.

Expected behavior

When ramp encounters an issue, a message is shown to the user and parts of ramp unrelated to the error are still usable (e.g. if a section fails to load then other sections are still playable).

[joncameron]

React ErrorBoundaries could be used in Ramp to capture errors bubbling up from children components and could be given a message to display. We could do this on the Ramp side, to avoid the issue of nothing rendering, whatever the error within Ramp is.