* Add Course theme
This theme is meant to be used with Sensei LMS, but can also be used standalone.
* Remove .pot file
* Remove obsolete CSS
* Remove color on search button
* Remove custom Sensei footer.
* Fix path of the Inter font
On the default and `blue` style.
* Fix line height
* Make image captions smaller than post content
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Co-authored-by: Mikey Arce <mikeyarce@gmail.com>
Co-authored-by: Jake Oehler Morrison <s+github@jom.im>
