fix a couple PHPCS errors
remove unused paging.css file
add an editorconfig file
Reworked /packages

- Unified with layout on homepage
- Removed /packages/categories
- Removed js-based filtering on homepage
- Add category list on all pages
- bootstrap the whole site
- revamp the homepage
- revamp package page
- revamp maintainer view
- fix creation of new maintainers...
- remove all the js templating