优化前后端代码，将公共方法抽取到util类，修改客户端加密方式

app/locales/cn.ts

@@ -365,6 +365,7 @@ const cn = {
           Title: "加密密钥",
           SubTitle: "用于配置数据的加密密钥",
           Placeholder: "输入加密密钥",
+          Invalid: "无效的加密密钥。必须至少包含8个字符！",
         },
       },
       Azure: {

app/locales/en.ts

@@ -369,6 +369,8 @@ const en: LocaleType = {
           Title: "Encryption Key",
           SubTitle: "Your encryption key for configuration data",
           Placeholder: "Enter encryption key",
+          Invalid:
+            "Invalid encryption key format. Must no less than 8 characters long!",
         },
       },
       Azure: {