Error: Unable to extract. Cannot create a file when that file already exists.
```console
PS C:\Users\user> .\choosenim.exe --firstInstall stable
    Prompt: Can choosenim record and send anonymised telemetry data? [y/n]
        ... Anonymous aggregate user analytics allow us to prioritise
        ... fixes and features based on how, where and when people use Nim.
        ... For more details see: https://goo.gl/NzUEPf.
    Answer: Yes
      Info: Your client ID is ad6866de-b849-4f26-9451-d3ce56f443c3
      Info: C:\Users\user\.choosenim\downloads\dlls.zip already downloaded
 Extracting dlls.zip
     Error: Unable to extract. Error was 'Cannot create a file when that file already exists.'

PS C:\Users\user>
```

I infer that if `C:\Users\user\.choosenim\downloads\dlls.zip` already exists for some reason,
it crashes complaining about the file already existing. :shrug: 
Theres no other process running so no file is locked.
It should overwrite whatever file it needs to extract. 

#### Workaround

- I manually deleted `C:\Users\user\.choosenim\` and `C:\Users\user\.nimble\` and tried again and it worked just Ok.

Windows 10, x86_64, fresh install, `0.6.0` [EXE from GitHub release.](https://github.com/dom96/choosenim/releases/tag/v0.6.0)
