Improve toolbar accessibility

src/styles.css

@@ -1,7 +1,7 @@
 /* You can add global styles to this file, and also import other style files */
 @import "~@angular/material/prebuilt-themes/pink-bluegrey.css";
 
-h1, h2, h3, p, span {
+h1, h2, h3, p, span, a {
   font-family: Roboto, "Helvetica Neue", sans-serif;
   font-weight: 300;
 }
@@ -114,5 +114,5 @@ html, body {
 }
 
 .active {
-  color: var(--nord7);
+  color: var(--nord7) !important;
 }