Configuration uri idn values are inverted

Documentation says that "idn enabled = All. This value will convert any Unicode domain names to their Punycode equivalents (IDN names).", and "idn enabled = None. This value will not convert any Unicode domain names to use Punycode. This is the default value which is consistent with the .NET Framework 2.0 behavior."

However, tests seem to return the exact opposite.
Code:
```
using System;
using System.Configuration;

namespace punycodebug
{
internal class Program
{
static void Main(string[] args)
{
UriSection y = (UriSection)ConfigurationManager.GetSection("uri");
var idnStatus = y.Idn.Enabled;

string[] inputArray = new string[] { "http://www.bücher.de", "http://www.xn--bcher-kva.de" };
foreach (string url in inputArray)
{
Uri uri = new Uri(url);
string output = $"UriSection.idn.Enabled: {idnStatus} - Host: {uri.Host} - DnsSafeHost: {uri.DnsSafeHost} - IdnHost: {uri.IdnHost}";
Console.WriteLine(output);
}
}
}
}
```

**Scenario 1:**
App.Config:
```

```

Output:
```
UriSection.idn.Enabled: None - Host: www.bücher.de - DnsSafeHost: www.bücher.de - IdnHost: www.xn--bcher-kva.de
UriSection.idn.Enabled: None - Host: www.xn--bcher-kva.de - DnsSafeHost: www.xn--bcher-kva.de - IdnHost: www.xn--bcher-kva.de
```

**Scenario 2:**
App.config:
```

```

Output:
```
UriSection.idn.Enabled: All - Host: www.bücher.de - DnsSafeHost: www.xn--bcher-kva.de - IdnHost: www.xn--bcher-kva.de
UriSection.idn.Enabled: All - Host: www.bücher.de - DnsSafeHost: www.xn--bcher-kva.de - IdnHost: www.xn--bcher-kva.de
```

---
#### Document Details

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* ID: 5964b70f-674f-f9fd-7c28-a108dc27b365
* Version Independent ID: d4e83b90-91e8-c7fa-1ff2-fbf414f7781c
* Content: [<idn> Element (Uri Settings) - .NET Framework](https://docs.microsoft.com/en-us/dotnet/framework/configure-apps/file-schema/network/idn-element-uri-settings)
* Content Source: [docs/framework/configure-apps/file-schema/network/idn-element-uri-settings.md](https://github.com/dotnet/docs/blob/main/docs/framework/configure-apps/file-schema/network/idn-element-uri-settings.md)
* Product: **dotnet-framework**
* Technology: **dotnet-networking**
* GitHub Login: @karelz
* Microsoft Alias: **ncldev**