fix: 登录账号开放编辑

bs-ui/src/views/broker/broker/components/BrokerUser.vue

@@ -215,7 +215,7 @@
         <el-row>
           <el-col :span="12">
             <el-form-item label="登录账号" prop="userName">
-              <el-input v-model="form.userName" placeholder="" disabled />
+              <el-input v-model="form.userName" placeholder="请输入登陆账号" maxlength="20" minlength="2" />
             </el-form-item>
           </el-col>
         </el-row>

bs-ui/src/views/system/user/index.vue

@@ -219,7 +219,7 @@
         <el-row>
           <el-col :span="12">
             <el-form-item label="登录账号" prop="userName">
-              <el-input v-model="form.userName" placeholder="" disabled />
+              <el-input v-model="form.userName" placeholder="请输入登陆账号" maxlength="20" minlength="2" />
             </el-form-item>
           </el-col>
         </el-row>
@@ -250,7 +250,7 @@
         <el-row>
           <el-col :span="12">
             <el-form-item v-if="form.userId == undefined" label="登陆账号" prop="userName">
-              <el-input v-model="form.userName" placeholder="请输入登陆账号" maxlength="30" />
+              <el-input v-model="form.userName" placeholder="请输入登陆账号" maxlength="20" minlength="2" />
             </el-form-item>
           </el-col>
           <el-col :span="12">