This change adds example to delete notifications. It's automatically loaded on dom-ready, and sets `click` handler for all `.delete` elements of `.notification`s.
* Replace variables.json with colors.json and update related files accordingly
* Add variables data files
* Update variables include template and all related files to use new variables data
* Fix mobile breakpoint id typo in responsivness docs page
* Fix Liquid syntax error in made-with-bulma docs page
* Update bulma sass files count in modular docs page
* Use breakpoints data in responsiveness helpers docs page
* Use breakpoints and variables data in typography helpers docs page
* Add missing page titles in docs pages front matter
