[仅供测试]重写navigateTo方法，解决微信小程序中超过10个页面栈时会出现的bug

pages/tabbar/home/template/tpl_goods.vue

@@ -57,7 +57,7 @@ export default {
   mounted() {},
   methods: {
     handleClick(item) {
-      uni.navigateTo({
+      this.$navigateTo({
         url: `/pages/product/goods?id=${item.id}&goodsId=${item.goodsId}`,
       });
     },

pages/tabbar/home/template/tpl_promotions_detail.vue

@@ -145,22 +145,22 @@ export default {
     goToDetail(type) {
       switch(type) {
         case "SECKILL":
-          uni.navigateTo({
+          this.$navigateTo({
             url: `/pages/promotion/seckill`,
           });
           break;
         case "PINTUAN":
-          uni.navigateTo({
+          this.$navigateTo({
             url: `/pages/promotion/joinGroup`,
           });
           break;
         case "LIVE":
-          uni.navigateTo({
+          this.$navigateTo({
             url: `/pages/promotion/lives`,
           });
           break;
         case "KANJIA":
-          uni.navigateTo({
+          this.$navigateTo({
             url: `/pages/promotion/bargain/list`,
           });
           break;

pages/tabbar/home/template/tpl_search.vue

@@ -12,7 +12,7 @@ export default {
   props: ["res"],
   methods: {
     handleSearch() {
-      uni.navigateTo({
+      this.$navigateTo({
         url: "/pages/navigation/search/searchPage",
       });
     },