refactor: 抽离WxMpSelect组件

src/views/mp/components/WxMpSelect.vue

+<template>
+  <el-select
+    v-model="accountId"
+    placeholder="请选择公众号"
+    class="!w-240px"
+    @change="accountChanged"
+  >
+    <el-option v-for="item in accountList" :key="item.id" :label="item.name" :value="item.id" />
+  </el-select>
+</template>
+
+<script lang="ts" setup name="WxMpSelect">
+import * as MpAccountApi from '@/api/mp/account'
+
+const accountId: Ref<number | undefined> = ref()
+const accountList: Ref<MpAccountApi.AccountVO[]> = ref([])
+
+const emit = defineEmits<{
+  (e: 'change', id: number | undefined): void
+}>()
+
+onMounted(async () => {
+  handleQuery()
+})
+
+const handleQuery = async () => {
+  const data = await MpAccountApi.getSimpleAccountList()
+  accountList.value = data
+  // 默认选中第一个
+  if (accountList.value.length > 0) {
+    accountId.value = accountList.value[0].id
+    emit('change', accountId.value)
+  }
+}
+
+const accountChanged = () => {
+  emit('change', accountId.value)
+}
+</script>