core: replace detect-browser with ua-parser-js

packages/hydrooj/package.json

@@ -25,7 +25,6 @@
         "adm-zip": "0.5.14",
         "cac": "^6.7.14",
         "cordis": "3.18.1",
-        "detect-browser": "^5.3.0",
         "emoji-regex": "^10.4.0",
         "emojis-list": "2.1.0",
         "fs-extra": "^11.2.0",
@@ -51,7 +50,8 @@
         "shorty.js": "^1.0.1",
         "superagent": "^10.1.0",
         "tar": "6.2.1",
-        "thirty-two": "^1.0.2"
+        "thirty-two": "^1.0.2",
+        "ua-parser-js": "^1.0.39"
     },
     "devDependencies": {
         "@types/adm-zip": "^0.4.34",