fix: package.json & package-lock.json to reduce vulnerabilities (#1419)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DOMPURIFY-1035544

Co-authored-by: 沈唁 <[email protected]>

Author: snyk-bot

Diff for: package-lock.json

@@ -54,7 +54,7 @@
     "*.js": "eslint --fix"
   },
   "dependencies": {
-    "dompurify": "^2.0.8",
+    "dompurify": "^2.2.2",
     "marked": "^1.2.2",
     "medium-zoom": "^1.0.6",
     "opencollective-postinstall": "^2.0.2",