NEZ-897 fix: roleBox dashboard -overview 增加默认选中，且不可取消选中

nezha-fronted/src/components/common/rightBox/administration/roleBox.vue

@@ -23,7 +23,7 @@
               <button type="button" class="nz-btn nz-btn-size-small-new nz-btn-style-light-new option-btn" style="margin-left: 0px;" @click="expandAllOrNone" :class="{'btn-active':expandAllFlag}">展开/收缩</button>
               <button type="button" class="nz-btn nz-btn-size-small-new nz-btn-style-light-new option-btn" @click="selectAllOrNone" :class="{'btn-active':selectAllFlag}"><span ><i class="nz-icon nz-icon-delete"></i></span></button>
             </div>-->
-            <el-tree :data="menus" :default-expand-all="expandAllFlag" :props="{label:labelFormatter}"  @check-change="selectChange" class="tree-border" node-key="id" ref="menuTree" show-checkbox id="role-box-input-menus">
+            <el-tree :data="menus" :default-expand-all="expandAllFlag" :props="{label:labelFormatter}" :default-checked-keys="[2]" class="tree-border" node-key="id" ref="menuTree" show-checkbox id="role-box-input-menus">
               <div slot-scope="{ node, data }">
               <span>
                 <i v-if="data.type == '1'" class="el-icon-menu"></i>
@@ -121,6 +121,7 @@ export default {
             if (response.code == 200) {
               self.menus = response.data.menus
               self.selectedIds = response.data.selectedIds
+              self.menus[0].children[0].disabled = true
             } else {
               self.$message.error('load menu faild')
             }
@@ -130,6 +131,7 @@ export default {
           self.$get('/sys/menu').then(response => {
             if (response.code == 200) {
               self.menus = response.data.list
+              self.menus[0].children[0].disabled = true
             } else {
               self.$message.error('load menu faild')
             }
@@ -141,11 +143,6 @@ export default {
     labelFormatter: function (data, node) {
       return data && data.i18n ? this.$t(data.i18n) : data.name
     },
-    selectChange: function (data, isCheck, childIsCheck) {
-      if (this.$refs.menuTree) {
-        this.editRole.menuIds = this.$refs.menuTree.getCheckedKeys(true)
-      }
-    },
     selectAllOrNone: function () {
       if (this.$refs.menuTree) {
         if (!this.selectAllFlag) {
@@ -168,7 +165,7 @@ export default {
     save () {
       if (this.prevent_opt.save) { return } ;
       this.prevent_opt.save = true
-
+      this.editRole.menuIds = this.$refs.menuTree.getCheckedKeys(true)
       this.$refs.roleForm.validate((valid) => {
         if (valid) {
           if (this.editRole.id) {