fix: web/package.json & web/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-CODEMIRROR-10494092

Author: snyk-bot

web/package-lock.json

@@ -22,7 +22,7 @@
     "@tweenjs/tween.js": "^18.6.4",
     "bootstrap": "^4.5.3",
     "cbor-js": "^0.1.0",
-    "codemirror": "^5.62.3",
+    "codemirror": "^6.0.0",
     "echarts": "^5.2.1",
     "flatpickr": "^4.6.9",
     "font-awesome": "^4.7.0",