core: limit access for hidden problems' submission

packages/hydrooj/locales/ko.yaml

@@ -546,6 +546,7 @@ Rank: 순위
 ranking: 순위
 Read data of own problems: 자신의 문제 데이터 읽기
 Read data of problem: 문제 데이터 읽기
+Read record codes: 점수 읽기
 Ready (☆▽☆): 준비 완료! (☆▽☆)
 Ready: 준비됨
 Recent {0} Records: 최근 {0} 점수

packages/hydrooj/locales/zh_TW.yaml

@@ -351,9 +351,9 @@ QQ Group: QQ 群
 QQ Visibility: QQ 可見性
 Quit Scratchpad: 退出線上程式設計模式
 Rank: 排名
-Read all records: 讀取記錄
 Read data of own problems: 讀取自己題目的資料
 Read data of problem: 讀取題目資料
+Read record codes: 讀取記錄的程式碼
 Ready (☆▽☆): 馬上開始 (☆▽☆)
 Ready: 即將開始
 Recent {0} Records: 最近 {0} 條記錄