Position search icon slightly less to the right so it is not cut off.

h/static/styles/simple-search.scss

@@ -22,7 +22,7 @@
   line-height: 2;
   margin-left: -100%;
   position: relative;
-  right: 20 / 14 * 1em;
+  right: 19 / 14 * 1em;
 
   :not(:focus) ~ & {
     color: $gray-lighter;