docs(essentials): fix labelling of code as preview (#1105)

Author: MrSarno

docs/content/3.essentials/3.components.md

@@ -187,7 +187,7 @@ Wrap your `card` components with the `card-group` component to group them togeth
     ::::
   :::
 
-  :::tabs-item{.my-5 icon="i-lucide-eye" label="Preview"}
+  :::tabs-item{.my-5 icon="i-lucide-code" label="Code"}
   ```mdc
   :::card-group