fix(ui): use default variant for skip button in integration form

Subtle variant was too easy to miss. Switch to default variant for
better visibility alongside the other action buttons.

apps/nextjs/src/app/[locale]/manage/integrations/new/_integration-new-form.tsx

@@ -218,7 +218,7 @@ export const NewIntegrationForm = ({
             </Button>
           )}
           {onSkip && (
-            <Button variant="subtle" onClick={onSkip}>
+            <Button variant="default" onClick={onSkip}>
               {t("common.action.skip")}
             </Button>
           )}