chore: De-bold text on left-side menu (#354)

* chore: De-bold text on left-side menu

* chore: De-bold text on left-side menu

Author: Saksham-Sirohi

src/pretalx/static/orga/css/_layout.css

@@ -192,7 +192,6 @@ aside.sidebar {
 
   a {
     color: var(--color-primary);
-    font-weight: bold;
     &:hover {
       text-decoration: none;
     }