- created pills for 2 authors and 3+ authors;
- moved Author pills to a single file located in Authors/AuthorPills;
- fixed imports

- make header correspond to page type, changing background and font
  colors based on the type of page it is inserted instead of being
  generic

- changed metadata generation, badges, favicons and open graphs,
  replacing payload boilerplate open graph and use content tailored to
  the content-sub project

- enabled payload SEO plugin to automatically generate metadata for
  sharing;
- enabled live preview and increased draft saving to facilitate
  previewing;
- enabled page preview;

- remove unused collections,
- temporarily disable search plugin,
- add missing collections to SEO plugin and its functions (generate
title, generate URL),
- add missing collections to Redirects plugin;

plugin was throwing errors upon type generation due to having
collections parameters enabled, which isn't necessary for the current
version.

and remove unused ones

- remake author pill as a standalone component;
- use conditional rendering to make it fit one, two or more
contributors;

…rs/improve-content-editing

- remove unused seed functionality;
- add information about important features of the dashboard;
- link to quick tutorial rundown;