[Client] Fix bug

src/web/app/common/scripts/date-stringify.js

@@ -2,7 +2,7 @@ module.exports = date => {
 	if (typeof date == 'string') date = new Date(date);
 	return (
 		date.getFullYear()    + '年' + 
-		date.getMonth() + 1 + '月' + 
+		(date.getMonth() + 1) + '月' + 
 		date.getDate()        + '日' +
 		' ' +
 		date.getHours()       + '時' + 

src/web/app/common/tags/time.tag

@@ -11,7 +11,7 @@
 
 		this.absolute =
 			this.time.getFullYear()    + '年' +
-			this.time.getMonth() + 1 + '月' +
+			(this.time.getMonth() + 1) + '月' +
 			this.time.getDate()        + '日' +
 			' ' +
 			this.time.getHours()       + '時' +