为什么应用初始化的时候默认会先生成一个空路由呢

## Steps to Reproduce
**A small application to reproduce the bug(最小化可复现的demo)**
routeFactory BoostPage(name:/, uniqueId:1639754131801_/, arguments:null)
我并没有name为/ 的页面。但是 默认会先初始化一个这个

1. ...
2. ...
3. ...

**Flutter Boost Version**
**Target Platform:**
**Target OS version/browser:**
**Devices:**

## Logs
add your crash log or something else.

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Start by tracing the routeFactory log showing BoostPage(name: /) during application initialization. Check the Flutter Boost initialization and route-handling entry points to determine why this route is created, then reproduce it in a minimal application. Done means the cause is documented and the unwanted empty route is either prevented or its expected behavior is clarified.

Written by the indexing model from the issue text.