core&ui: use langConfig.hidden for remote problems

packages/hydrojudge/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.14.6",
+    "version": "2.14.7",
     "main": "package.json",
     "author": "undefined <i@undefined.moe>",
     "repository": "https://github.com/hydro-dev/Hydro.git",

packages/hydrojudge/src/sysinfo.ts

@@ -44,6 +44,7 @@ int main(){
                 time_limit_rate: 1,
                 domain: [],
                 key: '',
+                hidden: false,
             }),
             tmpdir: path.resolve(getConfig('tmp_dir'), 'sysinfo'),
         };