Fixed an issue with ButtonDanger Not defined. (#2128)

Replaced ButtonDanger with Button Component with the props variant="danger"

Co-authored-by: Siddharth Kshetrapal <siddharthkp@github.com>

docs/content/Details.md

@@ -52,7 +52,7 @@ You can also manually show/hide the content using the `setOpen` function returne
       <Details {...getDetailsProps()}>
         <Button as="summary">Delete item</Button>
         Are you sure?
-        <ButtonDanger onClick={() => setOpen(false)}>Yes I'm sure</ButtonDanger>
+        <Button variant="danger" onClick={() => setOpen(false)}>Yes I'm sure</Button>
       </Details>
     )
   }}