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

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.34.40",
+  "version": "4.35.0",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
@@ -26,7 +26,6 @@
     "@types/katex": "^0.14.0",
     "@types/qrcode": "^1.4.2",
     "@types/redux-logger": "^3.0.9",
-    "@types/sockjs-client": "^1.5.1",
     "@undefined-moe/monaco-yaml": "^2.5.1",
     "ansi_up": "^5.1.0",
     "autoprefixer": "^9.8.8",
@@ -89,7 +88,6 @@
     "redux-thunk": "^2.4.1",
     "rupture": "^0.7.1",
     "slideout": "^1.0.1",
-    "sockjs-client": "^1.6.0",
     "speed-measure-webpack-plugin": "^1.5.0",
     "sticky-kit": "^1.1.3",
     "style-loader": "^2.0.0",