fix: updating Tailwind CSS variables from --radix-* to --reka-* (#6890)

* fix: radix => reka

* chore: add reka cspell

* fix: Composition url

packages/@core/ui-kit/shadcn-ui/src/components/button/button.ts

@@ -13,7 +13,7 @@ export interface VbenButtonProps {
   /**
    * Change the default rendered element for the one passed as a child, merging their props and behavior.
    *
-   * Read our [Composition](https://www.radix-vue.com/guides/composition.html) guide for more details.
+   * Read our [Composition](https://www.reka-ui.com/docs/guides/composition) guide for more details.
    */
   asChild?: boolean;
   class?: any;

packages/@core/ui-kit/tabs-ui/src/use-tabs-view-scroll.ts

@@ -59,7 +59,7 @@ export function useTabsViewScroll(props: TabsProps) {
     }
 
     const viewportEl = scrollbarEl?.querySelector(
-      'div[data-radix-scroll-area-viewport]',
+      'div[data-reka-scroll-area-viewport]',
     );
 
     scrollViewportEl.value = viewportEl;