Bar Plot Component (#3157)
* Add code - first draft
* Getting better
* Work out the bugs
* Fix docstrings
* CHANGELOG
* Fix test
* Generate notebooks
* Add unit test
* Undo website package.lock
* Fix demo
* Fix notebooks
* Fix docstrings
* Improve example in CHANGELOG
* Address comments + feedback
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Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
