fix(项目设置): 修复环境相关问题

--bug=1025127 --user=王孝刚 【项目设置】项目环境-创建环境页面显示错误
https://www.tapd.cn/55049933/s/1359460

api-test/frontend/src/business/automation/scenario/variable/VariableList.vue

@@ -485,6 +485,7 @@ export default {
       this.variables.forEach((item) => {
         item.hidden = undefined;
         if (item.name && item.name != '') {
+          item.showMore = false;
           saveVariables.push(item);
         }
       });

framework/sdk-parent/frontend/src/components/MsDialogHeader.vue

@@ -85,6 +85,7 @@ export default {
         this.icon= ['fa', 'expand-alt'];
       }
       this.$emit("update:isFullScreen",bool);
+      this.$emit("fullScreen");
     },
   },
 };

framework/sdk-parent/frontend/src/components/environment/commons/variable/VariableImport.vue

@@ -1,10 +1,10 @@
 <template>
   <el-dialog :visible="dialogVisible" :title="dialogTitle"
              @close="close" :close-on-click-modal="false" append-to-body
-             width="35%">
+             width="550px">
     <el-form :rules="rules" label-width="80px" v-model="modeId">
       <el-form-item prop="modeId" :label="$t('commons.import_mode')">
-        <el-select size="small" v-model="modeId">
+        <el-select size="small" v-model="modeId" style="width: 360px">
           <el-option v-for="item in modeOptions" :key="item.id" :label="item.name" :value="item.id"/>
         </el-select>
       </el-form-item>