core, ui, judge: rewrite http & ws layer (#352)

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.11.22",
+    "version": "3.12.0",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",
@@ -47,7 +47,6 @@
         "require-resolve-hook": "^1.1.0",
         "semver": "^7.3.6",
         "serialize-javascript": "^6.0.0",
-        "sockjs": "^0.3.24",
         "source-map-support": "^0.5.21",
         "superagent": "^7.1.2",
         "thirty-two": "^1.0.2",
@@ -70,7 +69,6 @@
         "@types/notp": "^2.0.2",
         "@types/semver": "^7.3.9",
         "@types/serialize-javascript": "^5.0.2",
-        "@types/sockjs": "^0.3.33",
         "@types/source-map-support": "^0.5.4",
         "@types/superagent": "^4.1.15",
         "moment": "^2.29.2",