Updated Simplified Chinese translation (#773)

Author: jhqwqmc

common/webapp/public/lang/zh-CN.conf

@@ -83,6 +83,9 @@
     light: "浅色模式"
     contrast: "高对比模式"
   }
+  chunkBorders: {
+    button: "显示区块边界"  
+  }
   debug: {
     button: "调试"
   }