#3405 Kalender -Speichern-Button verschwindet

package.json

@@ -64,6 +64,7 @@
     "core-js": "^2.6.5",
     "hammerjs": "^2.0.8",
     "lodash": "^4.17.21",
+    "moment": "^2.29.4",
     "ng2-pdf-viewer": "^6.4.1",
     "ngx-device-detector": "^2.0.6",
     "rxjs": "^6.6.7",
@@ -84,6 +85,7 @@
     "@types/jasmine": "~3.6.0",
     "@types/jasminewd2": "~2.0.3",
     "@types/lodash": "^4.14.168",
+    "@types/moment": "^2.13.0",
     "@types/node": "^18.6.1",
     "@types/object-hash": "^2.1.0",
     "@types/uuid": "^8.3.0",