core: fix redirect query encode

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.4.5",
+    "version": "3.4.6",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",

packages/hydrooj/src/service/server.ts

@@ -371,7 +371,7 @@ export class HandlerCommon {
         }
         for (const key in kwargs.query || {}) {
             if (query[key] instanceof ObjectID) query[key] = kwargs.query[key].toHexString();
-            else query[key] = kwargs.query[key].toString().replace(/\//g, '%2F');
+            else query[key] = encodeURIComponent(kwargs.query[key].toString());
         }
         try {
             const { anchor } = args;