Mkdocs-exporter

**Changelog**

- Implemented 'book' covers, a combination of 'limits' and 'fronts' (42, by AdrianDC)
- Copy background image when using global front cover page (41, by ebouchut)
- Updated dependencies

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v6.1.1...v6.2.0

**Changelog**

- Fixed the `timeout` option not being honored (fixes 30)
- Fixed some issues with the pagination on aggregated documents
- Updated dependencies

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v6.1.0...v6.1.1

**Changelog**

- Aggregator - Cover pages behavior is now configurable (resolves 25)
- Material Theme - Fixed code blocks titles being separated from their body (resolves 26)
- Fixed issues with font kerning (resolves 27)
- Extra arguments can now be passed to the browser via the plugin's configuration
- Updated dependencies

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v6.0.0...v6.1.0

**Changelog**

- MkDocs Exporter is now a single plugin (there is no longer the need to register `exporter-pdf`, `exporter-extras`...)
- All your PDF documents can now be combined into a single one (resolves 12)
- Dropped Python 3.8 support
- Miscellaneous fixes and enhancements
- Rewrote the documentation
- Updated dependencies

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v5.3.1...v6.0.0

**Changelog**

- Updated dependencies
- Updated documentation
- Introducting a "[Reference](https://adrienbrignon.github.io/mkdocs-exporter/reference/configuration/base/)" section

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v5.3.0...v5.3.1

**Changelog**

- Updated dependencies

**Full changelog**: https://github.com/adrienbrignon/mkdocs-exporter/compare/v5.2.1...v5.3.0