* Ebook improvements Removes fixed height and width from the resulting HTML and adds an additional css for the ebook formats. * Update gitignore * Strip tags
* add tikzcache * ignore files * add latexmkrc file * Move figures to new files * rename images * Fix build commands * Release as epub3 and mobi * Add cover-image support * use older epub * Externalize all tables * change gh actions command * fix linux xargs rm