Updating 'updated' banner bg colour

Author: SteveWilkes

_sass/_variables.scss

@@ -16,6 +16,7 @@ $white: #fff;
 $red: #E55065;
 $green: #50D174;
 $teal: #00aba9;
+$cyan: #1ba1e2;
 
 // Abstractions
 $header-bg-color: $black;
@@ -32,7 +33,7 @@ $code-border-color: $gray-light;
 $code-bg-color: $gray-lighter;
 $code-text-color: $gray-darkest;
 
-$updated-bg-color: $teal;
+$updated-bg-color: $cyan;
 $updated-text-color: $white;
 
 $form-error-color: $red;