Some changes ported from the work on the makerkit.dev website related… (#89)

* Some changes ported from the work on the makerkit.dev website related to the marketing sections of the kit, such as documentation
* Added slight background hue to make darker theme better looking
* Support more complex configurations for documentation navigations.
* Do not fetch content from Keystatic when non-needed
* Add cursor pointers in dropdown
* Updated packages

packages/ui/src/makerkit/mode-toggle.tsx

@@ -74,7 +74,7 @@ export function SubMenuModeToggle() {
 
         return (
           <DropdownMenuItem
-            className={cn('flex items-center space-x-2', {
+            className={cn('flex items-center space-x-2 cursor-pointer', {
               'bg-muted': isSelected,
             })}
             key={mode}