core&ui: support bulk rejudge task

packages/hydrooj/locales/en.yaml

@@ -45,6 +45,7 @@ homework_main: Homework
 homework_scoreboard: Scoreboard
 judge_playground: Judge Playground
 main: Home
+manage_rejudge: Rejudge Management
 manage_config: System Configurations
 manage_dashboard: System
 manage_module: Module Management

packages/hydrooj/locales/zh.yaml

@@ -465,6 +465,7 @@ Logout: 登出
 Lost Password: 忘记密码
 Lucky: 手气不错
 Mail From: 发件人
+manage_rejudge: 重测管理
 manage_dashboard: 控制面板
 manage_join_applications: 加域申请
 manage_module: 管理模块

packages/hydrooj/locales/zh_TW.yaml

@@ -252,6 +252,7 @@ Logout All Sessions: 登出所有會話
 Logout This Session: 登出該會話
 Logout: 登出
 Lost Password: 忘記密碼
+manage_rejudge: 重測管理
 manage_dashboard: 概況
 manage_domain: 管理域
 manage_edit: 編輯域資料