Fix: Add hover effect to sidebar navigation links (#788)

* fix: add hover effect to sidebar navigation links

* resolve merge conflicts

---------

Co-authored-by: Nihal <65150640+Nihal4777@users.noreply.github.com>

Author: SouparnaChatterjee

_sass/custom/custom.scss

@@ -321,3 +321,12 @@ button,
 .nav-list-expander {
   cursor: pointer;
 }
+
+// hover effect on sidebar nav items
+.nav-list-link {
+  transition: color 0.2s ease;
+
+  &:hover {
+    text-decoration: underline;
+  }
+}