The background color of each line of the staff list on mobile devices has been set to a darker.

fixed  #2625

Author: shibomb

client/styles/abstracts/_variables.scss

@@ -170,7 +170,7 @@ $themes: (
     input-selection-text-color: $darkest,
     input-selection-background-color: $lightest,
     input-border-color: $middle-dark,
-    search-background-color: $lightest,
+    search-background-color: $darker,
     search-clear-background-color: $medium-dark,
     search-hover-text-color: $lightest,
     search-hover-background-color: $p5js-pink,