feat: 可设置默认折叠侧边栏

common/constants.go

@@ -29,6 +29,7 @@ var DrawingEnabled = true
 var DataExportEnabled = true
 var DataExportInterval = 5         // unit: minute
 var DataExportDefaultTime = "hour" // unit: minute
+var DefaultCollapseSidebar = false // default value of collapse sidebar
 
 // Any options with "Secret", "Token" in its key won't be return by GetOptions