Merge branch 'fine-music-score' into dev

src/student/leaderboard/index.module.less

@@ -92,7 +92,7 @@
       font-size: 15px;
       color: #333;
       margin-right: 6px;
-      max-width: 120px;
+      max-width: 75px;
       overflow: hidden;
       white-space: nowrap;
       text-overflow: ellipsis;

src/teacher/leaderboard/index.module.less

@@ -86,7 +86,7 @@
       font-size: 15px;
       color: #333;
       margin-right: 6px;
-      max-width: 120px;
+      max-width: 75px;
       overflow: hidden;
       white-space: nowrap;
       text-overflow: ellipsis;