Add modularity

sass/elements/elements.sass

@@ -1,13 +1,13 @@
 @charset "utf-8"
 
-@import "box"
-@import "button"
-@import "content"
-@import "form"
-@import "image"
-@import "notification"
-@import "progress"
-@import "table"
-@import "title"
+@import "box.sass"
+@import "button.sass"
+@import "content.sass"
+@import "form.sass"
+@import "image.sass"
+@import "notification.sass"
+@import "progress.sass"
+@import "table.sass"
+@import "title.sass"
 
-@import "other"
+@import "other.sass"