faet: Enhance not found errors with suggestions

[camilesing]

for issue: #5642

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[wjones127]

Hey @camilesing are you still working on this?

If so, you can take a look at what I draft here: #5830
It might help you make progress.

And if you continue working on this, make sure to address my comment about not computing the suggestion until the Display implementation is called.

[wjones127]

Schema was handled in #5976, but there are still opportunities to do something similar for index types. I'll close this but feel free to open a fresh PR if you want to do that work.