Make `gr.Code` support `lines`, expand to fill entire element (#3651)
* Make `gr.Code` support `lines`, expand to fill entire element
* Update changelog
* Fix typeerrors
* Fix test
* fix interactive bug with update
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Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
Co-authored-by: aliabd <ali.si3luwa@gmail.com>
Co-authored-by: pngwn <hello@pngwn.io>