modify opacity settings for secondary items

apps/app/src/components/Sidebar/SidebarNav/SecondaryItems.module.scss

@@ -7,13 +7,11 @@
   .btn {
     @extend %btn-basis;
 
-    span {
-      opacity: 0.6;
+    opacity: 0.6;
 
-      &:hover,
-      &:focus {
-        opacity: 0.8;
-      }
+    &:hover,
+    &:focus {
+      opacity: 0.8;
     }
   }
 }