Move bulk of webhook logic to plugin (#4866)

* Move bulk of webhook logic to plugin

* Re-enable cleanup task

* cron tasks

plugins/webhooks/client/components/WebhookSubscriptionDeleteDialog.tsx

@@ -0,0 +1,34 @@
+import * as React from "react";
+import { useTranslation } from "react-i18next";
+import WebhookSubscription from "~/models/WebhookSubscription";
+import ConfirmationDialog from "~/components/ConfirmationDialog";
+
+type Props = {
+  webhook: WebhookSubscription;
+  onSubmit: () => void;
+};
+
+export default function WebhookSubscriptionRevokeDialog({
+  webhook,
+  onSubmit,
+}: Props) {
+  const { t } = useTranslation();
+
+  const handleSubmit = async () => {
+    await webhook.delete();
+    onSubmit();
+  };
+
+  return (
+    <ConfirmationDialog
+      onSubmit={handleSubmit}
+      submitText={t("Delete")}
+      savingText={`${t("Deleting")}…`}
+      danger
+    >
+      {t("Are you sure you want to delete the {{ name }} webhook?", {
+        name: webhook.name,
+      })}
+    </ConfirmationDialog>
+  );
+}