refactor(pages): 将页面配置从route标签迁移到definePage宏

统一使用definePage宏配置页面样式和类型，移除冗余的route标签
更新vscode代码片段模板以匹配新的配置方式
简化pages.json中的页面配置

src/pages.json

@@ -58,23 +58,20 @@
     {
       "path": "pages/about/alova",
       "type": "page",
-      "layout": "default",
       "style": {
-        "navigationBarTitleText": "Alova 请求演示"
+        "navigationBarTitleText": "Alova 演示"
       }
     },
     {
       "path": "pages/about/vue-query",
       "type": "page",
-      "layout": "default",
       "style": {
-        "navigationBarTitleText": "Vue Query 请求演示"
+        "navigationBarTitleText": "Vue Query 演示"
       }
     },
     {
       "path": "pages/login/login",
       "type": "page",
-      "layout": "default",
       "style": {
         "navigationBarTitleText": "登录"
       }
@@ -82,7 +79,6 @@
     {
       "path": "pages/login/register",
       "type": "page",
-      "layout": "default",
       "style": {
         "navigationBarTitleText": "注册"
       }
@@ -102,7 +98,6 @@
         {
           "path": "demo/index",
           "type": "page",
-          "layout": "default",
           "style": {
             "navigationBarTitleText": "分包页面"
           }