Update nav link scss

_sass/_bootstrap_variables.scss

@@ -14,14 +14,15 @@ $bioc-green: #2cb77c;
 $primary:       $bioc-blue;
 $secondary:     $bioc-green;
 $light:         #f8f9fa;
+$white:         #FFFFFF
 $blue:          $bioc-blue;
 $dark:          #212529;
 
 /*-----Custom values for Bootstrap variables-----*/
 $link-decoration: none;
-$navbar-light-hover-color: $primary;
+$navbar-light-hover-color: $white;
 $link-color: $bioc-blue;
-$nav-link-color: #FFFFFF;
+$nav-link-color: $white;
 $nav-link-hover-color: $light;
 
 // Find out which bootstrap variables you can use to fine tune the styling of your website here: https://github.com/ELIXIR-Belgium/elixir-toolkit-theme/blob/main/_sass/bootstrap/_variables.scss