html-beautify changed to clean-html, because second has much more readable output, also fixed some
issues with several html outputs and empty default export
Pull Request check-list
[x] Does the linter pass?
[x] If this change fixes a bug (or a performance problem), is a regression
test (or a benchmark) included?
[x] Is a documentation update included (if this change modifies
existing APIs, or introduces new ones)?
Description of Change
html-beautify changed to clean-html, because second has much more readable output, also fixed some issues with several html outputs and empty default export
Pull Request check-list