Notification system enhanced

- Base for notifcation center
- Show text in map if no data is available

backend/package-lock.json

@@ -188,10 +188,9 @@
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     },
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-      "version": "14.11.10",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.11.10.tgz",
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-      "dev": true
+      "version": "14.14.9",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.9.tgz",
+      "integrity": "sha512-JsoLXFppG62tWTklIoO4knA+oDTYsmqWxHRvd4lpmfQRNhX6osheUOWETP2jMoV/2bEHuMra8Pp3Dmo/stBFcw=="
     },
     "@types/qs": {
       "version": "6.9.5",