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feat: include `.cause` stacks in the error stack traces (#4829)

* Append the cause stacks to the main stack trace

It would be great to get the full error stack chain for errors with causes, especially as all current browsers and Node.js >=16 supports it, see eg https://v8.dev/features/error-cause and https://dev.to/voxpelli/pony-cause-1-0-error-causes-2l2o

Eg. `pino` merged support for this as well: https://github.com/pinojs/pino-std-serializers/pull/78

* Fix tests

* Skip some string concatenation

* Don't export needlessly + improve docs

* Improved recursive filtering

* Added loop protection

* Same logic for "message" in cause trail as in top

* Apply suggestions from code review

Co-authored-by: Josh Goldberg ✨ <git@joshuakgoldberg.com>

* Revert "Apply suggestions from code review"

This reverts commit 04f700820.

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Co-authored-by: Josh Goldberg ✨ <git@joshuakgoldberg.com>

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