add i18n

packages/app/public/static/locales/en_US/translation.json

@@ -731,6 +731,8 @@
     "Password has invalid character": "Password has invalid character",
     "Password minimum character should be more than 8 characters": "Password minimum character should be more than 8 characters",
     "Password field is required": "Password field is required",
+    "Username or E-mail has invalid characters": "Username or E-mail has invalid characters",
+    "Password minimum character should be more than 6 characters": "Password minimum character should be more than 6 characters",
     "user_not_found": "User not found"
   },
   "grid_edit":{

packages/app/public/static/locales/ja_JP/translation.json

@@ -722,6 +722,8 @@
     "Password has invalid character": "パスワードに無効な文字があります",
     "Password minimum character should be more than 8 characters": "パスワードの最小文字数は8文字以上です",
     "Password field is required": "パスワードの欄は必ず入力してください",
+    "Username or E-mail has invalid characters": "ユーザー名または、メールアドレスに無効な文字があります",
+    "Password minimum character should be more than 6 characters": "パスワードの最小文字数は6文字以上です",
     "user_not_found": "ユーザーが見つかりません"
   },
   "grid_edit":{

packages/app/public/static/locales/zh_CN/translation.json

@@ -778,6 +778,8 @@
     "Password has invalid character": "密码有无效字符",
     "Password minimum character should be more than 8 characters": "密码最小字符应超过8个字符",
     "Password field is required": "密码字段是必需的",
+    "Username or E-mail has invalid characters": "用户名或电子邮件有无效的字符",
+    "Password minimum character should be more than 6 characters": "密码最小字符应超过6个字符",
     "user_not_found": "未找到用户"
 	},
   "grid_edit":{