Dataframe-image

- fix 108

- Fix a small css bug which align header left

- Fix 0.2.0 import error when matplotlib not installed

* Add html2image and playwright backend

* Bump lowest version to 3.8

* Ensure test output path

* Update readme

* Remove ChromeController dependency

* Increase waiting time in notebook convert

- Change `--no-input` to flag
- add `__version__` to `__init__`
- fix windows problem

- Fix bug caused by breaking changes on converting notebook to pdf since Chrome v111
- Fix no input not work with browser_pdf target