OCGV: Filter edit chops off first char of filter string passed on command line

![n3eQi8I 1](https://user-images.githubusercontent.com/585482/171778841-f2d9b0fd-df47-440a-9753-2a7f461dadca.gif)


Or, do

```powerhsell
Get-Process | Out-ConsoleGridView -Filter test
```

This doesn't appear to impact filter functionality, it's just that the first character is not visible. If one backspace to delete all of the filter string, it DOES delete that first char. 