[DURACOM-195] fixes (align with 7.x)

Author: davide-negretti

src/styles/_bootstrap_variables.scss

@@ -62,7 +62,8 @@ $navbar-light-toggler-icon-bg: url("data:image/svg+xml;charset=utf8,<svg+viewBox
 
 $ds-home-news-link-color: $link-color !default;
 $ds-home-news-link-hover-color: darken($ds-home-news-link-color, 15%) !default;
-$ds-breadcrumb-link-color: $link-color !default;
+$ds-breadcrumb-link-color: #003333 !default;
+$ds-breadcrumb-link-active-color: #040D11 !default;
 
 $ds-header-navbar-border-top-color: #fff !default;
 $ds-header-navbar-border-bottom-color: #ced4da !default;

src/themes/dspace/styles/_theme_sass_variable_overrides.scss

@@ -85,3 +85,6 @@ $navbar-dark-color: #fff;
 
 $ds-home-news-link-color: #92c642;
 $ds-header-navbar-border-bottom-color: #92c642;
+
+$ds-breadcrumb-link-color: #154E66 !default;
+$ds-breadcrumb-link-active-color: #040D11 !default;