ui: disable default mdit plugins

packages/hydrooj/package.json

@@ -52,7 +52,7 @@
         "superagent": "^10.2.3",
         "tar": "6.2.1",
         "thirty-two": "^1.0.2",
-        "ua-parser-js": "1.0.40"
+        "ua-parser-js": "1.0.41"
     },
     "devDependencies": {
         "@types/adm-zip": "^0.5.7",
@@ -63,7 +63,7 @@
         "@types/lodash": "^4.17.20",
         "@types/mime-types": "^3.0.1",
         "@types/mongodb-uri": "^0.9.4",
-        "@types/nodemailer": "^6.4.18",
+        "@types/nodemailer": "^7.0.1",
         "@types/notp": "^2.0.5",
         "@types/saslprep": "^1.0.3",
         "@types/semver": "^7.7.0",