fix: tmp add navbar background on 'landing' page

Author: michalsek

packages/audiodocs/src/css/overrides.css

@@ -9,6 +9,10 @@
   background-color: var(--ifm-navbar-background-color);
 }
 
+[class*='navbarHideable'] {
+  background-color: var(--ifm-navbar-background-color) !important;
+}
+
 .navbar__title {
   display: flex;
   align-items: center;