style: filling background color for collection header (#4774)

* style: filling background color for collection header

* udpating color

src/nft/components/collection/CollectionStats.tsx

@@ -311,6 +311,7 @@ export const CollectionStats = ({ stats, isMobile }: { stats: GenieCollection; i
       )}
       <Box
         as={isCollectionStatsLoading ? 'div' : 'img'}
+        background="explicitWhite"
         borderRadius="round"
         position="absolute"
         className={isCollectionStatsLoading ? styles.collectionImageIsLoading : styles.collectionImage}