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/components/dropdown.html

@@ -1,32 +1,8 @@
 ---
+title: Dropdown
 layout: documentation
 doc-tab: components
 doc-subtab: dropdown
-variables:
-- name: $dropdown-content-background-color
-  value: $white
-- name: $dropdown-content-arrow
-  value: $link
-- name: $dropdown-content-offset
-  value: 4px
-- name: $dropdown-content-radius
-  value: $radius
-- name: $dropdown-content-shadow
-  value: 0 2px 3px rgba($black, 0.1), 0 0 0 1px rgba($black, 0.1)
-- name: $dropdown-content-z
-  value: 20
-- name: $dropdown-item-color
-  value: $grey-dark
-- name: $dropdown-item-hover-color
-  value: $black
-- name: $dropdown-item-hover-background-color
-  value: $background
-- name: $dropdown-item-active-color
-  value: $primary-invert
-- name: $dropdown-item-active-background-color
-  value: $primary
-- name: $dropdown-divider-background-color
-  value: $border
 ---
 
 {% capture dropdown_example %}
@@ -368,7 +344,7 @@ variables:
       </div>
     </div>
 
-    {% include variables.html %}
+    {% include variables.html type='component' %}
 
   </div>
 </section>