Drop the filled invert hover on Create rule and use the updated header portraits.

Ghost matches the current marketing header, so the button no longer picks up a brand ring on hover.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/components/navigation/Top/Top.container.tsx

@@ -168,8 +168,8 @@ const TopContainer = memo<TopProps>(
       return (
         <Button
           size="xsmall"
-          buttonType="filled"
-          palette="inverse"
+          buttonType="ghost"
+          palette="default"
           onClick={handleCreateRuleClick}
           ariaLabel={t("ariaLabels.createNewRule")}
           className={