Improve superstruct error messaging in `snaps-jest`

Currently we throw only the first error when it comes to superstruct assertions, it would be better to throw a message with all the errors instead of possibly having people fix errors and see failures incrementally. We may benefit from writing a wrapper to `create` here.

Start in the snaps-jest handling for superstruct assertions and inspect how create is used. Determine how the assertion errors are collected, then verify that failures report all errors rather than only the first one.

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