Implement View Posts pages for authors

The [authors](https://blog.glugmvit.com/authors) page has the `View Posts` button working for only some authors.

Pages like this have to be implemented for every author, possibly using a Jekyll plugin or [Liquid](https://shopify.github.io/liquid/basics/introduction/) based template so adding "View Posts" pages for new authors is either done automatically or using a few lines of code.

Please make sure the Jekyll plugin(s) used for this, if any, are GitHub pages compatible.

[Example Reference](https://github.com/wowthemesnet/mundana-theme-jekyll/blob/master/_pages/author-sal.html): [Source](https://github.com/wowthemesnet/mundana-theme-jekyll/blob/master/_pages/author-sal.html)