fix(DownloadIndex.vue): 修正 CERNET 镜像名称为“校园网联合镜像”; 去除 URL 中无用 m. 前缀

Author: MingcongBai

src/pages/download/DownloadIndex.vue

@@ -69,9 +69,9 @@ const recipe = ref({});
 const recipeI18n = ref({});
 const sources = ref([
   {
-    name: 'MirrorZ',
+    name: '校园网联合镜像站',
     loc: '自动',
-    url: 'https://m.mirrors.cernet.edu.cn/anthon/aosc-os/'
+    url: 'https://mirrors.cernet.edu.cn/anthon/aosc-os/'
   },
   { name: '官方源', loc: '香港特别行政区', url: 'https://releases.aosc.io/' }
 ]);