Docs/variables data (#1314)

* 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

docs/documentation/elements/progress.html

@@ -3,11 +3,6 @@ title: Progress Bar
 layout: documentation
 doc-tab: elements
 doc-subtab: progress
-variables:
-- name: $progress-bar-background-color
-  value: $border
-- name: $progress-value-background-color
-  value: $text
 ---
 
 {% capture progress %}
@@ -57,7 +52,7 @@ variables:
 
     {% include snippet.html content=progress_sizes %}
 
-    {% include variables.html element=true %}
+    {% include variables.html type='element' %}
 
   </div>
 </section>