Change flex-gen half width media size to medium

Author: domlander

dotcom-rendering/src/components/FlexibleGeneral.tsx

@@ -569,7 +569,7 @@ const HalfWidthCardLayout = ({
 							)}
 							supportingContentAlignment="vertical"
 							supportingContentPosition="outer"
-							mediaSize="small"
+							mediaSize="medium"
 							aspectRatio={aspectRatio}
 							kickerText={card.kickerText}
 							showLivePlayable={false}