v2.2.0
* Introduced a new Style Library with 24 built-in styles, live previews, visual element removal, filtering, and import/export.
* Added “Review Before Saving” to edit content, metadata, and CSS before generating an eBook.
* Improved MathML compatibility across major eBook readers.
* Added complete localization for English, French, Brazilian Portuguese, and Russian.
* Expanded automated testing and EPUB validation.

Added in 2.1.0
- add support for EPUB 3
- add option to apply Readability.js on Save Page and Save Page as Chapter

Previous published version: 1.4.2. This is a full rewrite of the extraction and
background code onto Manifest V3.

The add-on no longer asks for access to your data on
all websites. It now runs on activeTab only, and its code is loaded into a page

Added MIME type to the generated .epub file

- Remove unnecessary permissions
- Detect image type if the URL doesn't have a file extension (jpg, gif, png)
- Reset the Busy indicator on errors
- Remove hidden elements when style is not included
- Replace iframes with divs

Added in 1.4
- Smaller ebook file size
- Fix for #37 - custom styles not applied
- Fix for #36 - br tag missing from pre blocks
- Fix for #31 - hanging in Busy state
- Other misc bug fixes

Update links for 3rd party libraries