Fix: input组件传入value后导致光标异常

### Version of antd-mobile

5.40.0

### Operating system and its version

_No response_

### Browser and its version

_No response_

### Sandbox to reproduce

_No response_

### What happened?

给VirtualInput传入value后， 并当删除为空时，强行塞入一个0， 会导致光标位置错误， 预期光标在最后面

### Relevant log output

```shell

```