[Update]n modify visitorCmtDto type #15

Author: jisu3817

server/app/src/apis/visitor/visitor.d.ts

@@ -7,7 +7,7 @@ export interface VisitorDto extends RowDataPacket {
 }
 
 export interface VisitorCmtDto {
-  nickname: string;
+  nickname?: string;
   password: string;
   description: string;
 }