feat(pushover): add pushover integration

packages/backend/src/apps/pushover/auth/is-still-verified.ts

@@ -0,0 +1,9 @@
+import { IGlobalVariable } from '@automatisch/types';
+import verifyCredentials from './verify-credentials';
+
+const isStillVerified = async ($: IGlobalVariable) => {
+  await verifyCredentials($);
+  return true;
+};
+
+export default isStillVerified;