Add blue hover for dropdowns

app/assets/stylesheets/framework/filters.scss

@@ -81,6 +81,8 @@
     padding: 8px 16px;
 
     &:hover {
+      background-color: $dropdown-hover-color;
+      color: white;
       text-decoration: none;
     }
   }

app/assets/stylesheets/framework/variables.scss

@@ -263,6 +263,11 @@ $dropdown-chevron-size: 10px;
 $dropdown-toggle-active-border-color: darken($border-color, 14%);
 
 
+/*
+* Filtered Search
+*/
+$dropdown-hover-color: #3B86FF;
+
 /*
 * Buttons
 */