fix(app): 修复分享页返回首页

packages/app/src/components/CustomNavBar.vue

@@ -39,7 +39,14 @@ onMounted(() => {
 })
 
 function handleBack() {
-  uni.navigateBack({ delta: 1 })
+  const pages = getCurrentPages()
+
+  if (pages.length > 1) {
+    uni.navigateBack({ delta: 1 })
+    return
+  }
+
+  uni.switchTab({ url: '/pages/home/index' })
 }
 </script>