feat(editor): add self-hosted TinyMCE editor and remove API key

worklenz-frontend/package-lock.json

@@ -36,7 +36,7 @@
         "ngx-doc-viewer": "^15.0.1",
         "ngx-socket-io": "^4.5.1",
         "rxjs": "~7.4.0",
-        "tinymce": "^6.7.3",
+        "tinymce": "^6.8.3",
         "tslib": "^2.6.1",
         "zone.js": "^0.13.1"
       },
@@ -15327,9 +15327,9 @@
       "dev": true
     },
     "node_modules/tinymce": {
-      "version": "6.7.3",
-      "resolved": "https://registry.npmjs.org/tinymce/-/tinymce-6.7.3.tgz",
-      "integrity": "sha512-J7WmYIi/gt1RvZ6Ap2oQiUjzAoiS9pfV+d4GnKuZuPu8agmlAEAInNmMvMjfCNBzHv4JnZXY7qlHUAI0IuYQVA=="
+      "version": "6.8.3",
+      "resolved": "https://registry.npmjs.org/tinymce/-/tinymce-6.8.3.tgz",
+      "integrity": "sha512-3fCHKAeqT+xNwBVESf6iDbDV0VNwZNmfrkx9c/6Gz5iB8piMfaO6s7FvoiTrj1hf1gVbfyLTnz1DooI6DhgINQ=="
     },
     "node_modules/tmp": {
       "version": "0.2.1",