Gracefully Handle HTTP and Evaluator Errors across TTM

[VarunS1997]

This is a pretty big task, but we should basically gracefully capture information about why a page is erroring out (like HTTP request code or evaluator failure or etc and display that instead of our fairly generic pages right now).

This was highly requested by the community, so let's do it!

[VarunS1997]

We have finished implementing the basic structure of this in 2024.06.01.

It was an endeavor and so is possible to cause more errors.

The remaining TODOs for this item before we ship it out:

• [x] Create a way to call the "update fields" button when there's evaluator failures
• [ ] Double check that entity selectors aren't returning wrapped entities (or handle them accordingly)

[VarunS1997]

Selector dialogs mostly should be working correctly, but could have an issue still. See: #106

Otherwise, this ticket is done.