Add list page

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

assets/sass/main.scss

@@ -1,6 +1,6 @@
 $width-mobile: 30rem;
 $width-content: 45rem;
-$width-max: 60rem;
+$width-wide: 75rem;
 
 @import "colors";
 @import "fonts";
@@ -9,8 +9,9 @@ $width-max: 60rem;
 @import "heading";
 @import "image";
 
+@import "list";
+
 @import "header";
-@import "posts";
 @import "content";
 @import "hero";
 @import "footer";