Update dark code theme

Author: catarak

client/styles/components/_p5-dark-codemirror-theme.scss

@@ -13,7 +13,7 @@
 $p5-dark-lightbrown: #A67F59;
 $p5-light-green: #42F48F;
 $p5-dark-black: #1C1C1C;
-$p5-dark-pink: #D9328F;
+$p5-dark-pink: #DE4A9B;
 $p5-dark-gray: #999999;
 $p5-dark-lightblue: #0F9DD7;
 $p5-dark-darkblue: #318094;