Update index.html to fix #4370 (#4423)

ERROR results sidebars are dark grey on black with this

index.html

@@ -34,7 +34,6 @@
 
         .nav-pills .nav-link.active,
         .nav-pills .show>.nav-link {
-            color: inherit !important;
             background-image: linear-gradient(rgb(0 0 0/20%) 0 0);
             box-shadow: rgba(0, 0, 0, 0.15) 1.95px 1.95px 2.6px;
         }