Changes
* HTML content is not minified beyond basic stripping of whitespace characters
Fixes
* Fix recursion limit error with chains of submission comments longer than ~1/6 of the recursion limit
* Fix incorrectly parsed usernames in comments with the OP (Original Poster) tag
Dependencies
* Use [lxml ^4.9.3](https://pypi.org/project/lxml/4.9.3)
* Remove [htmlmin](https://pypi.org/project/htmlmin)