优化 MediaCard 和 SearchSiteDialog 组件，移除全选功能并调整已选择站点的逻辑

src/components/cards/MediaCard.vue

@@ -88,15 +88,6 @@ const searchMenuShow = ref(false)
 // 选择站点对话框
 const chooseSiteDialog = ref(false)
 
-// 全选/全不选
-function checkAllSitesorNot() {
-  if (selectedSites.value.length === allSites.value.length) {
-    selectedSites.value = []
-  } else {
-    selectedSites.value = allSites.value.map(item => item.id)
-  }
-}
-
 // 查询所有站点
 async function querySites() {
   try {
@@ -113,7 +104,6 @@ async function querySites() {
 async function querySelectedSites() {
   try {
     const result: { [key: string]: any } = await api.get('system/setting/IndexerSites')
-
     selectedSites.value = result.data?.value ?? []
   } catch (error) {
     console.log(error)

src/components/dialog/SearchSiteDialog.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import type { Site, Plugin, Subscribe } from '@/api/types'
-import { PropType } from 'vue'
+import { popScopeId, PropType } from 'vue'
 
 const props = defineProps({
   sites: {
@@ -23,6 +23,12 @@ const siteFilter = ref('')
 // 已选择站点
 const selectedSites = ref<any[]>(props.selected || [])
 
+watchEffect(() => {
+  if (!selectedSites.value && props.selected){
+    selectedSites.value = props.selected
+  }
+})
+
 // 全选/全不选按钮文字
 const checkAllText = computed(() => {
   return selectedSites.value.length < props.sites?.length ? '选择全部' : '取消全选'