fix syntax

fix syntax

server/translations.json

@@ -467,7 +467,7 @@
     "view_source": "GitHub上的源代码",
     "white-out": "修正液",
     "zoom": "放大"
-  }
+  },
     "zh_tw": {
     "board_name_placeholder": "白板名稱",
     "circle": "圓形",