COMException for network path not found, instead of IOException

[Marv51]

Describe the bug
When I call this line with a network path that can not be found (maybe the device is offline), I get a COMException instead of the IOException that I would expect:

var file = await StorageFile.GetFileFromPathAsync(path);

The error message is correctly set to "The network path was not found. An element under the path 'X:\xxx' was not found".

This is great compared to the early days of CsWinRT, thank you very much for your hard work on this!

However, in #1393 I saw that there is a mapping of HResult to dotnet Exception types? Maybe this exception is just not yet mapped?

The HResult is 0x80070035. (Seems to be a ERROR_BAD_NETPATH from winerror.h)

To Reproduce
see above.

Expected behavior
An IOException is thrown.

Version Info
WinAppSDK 1.4.5, no custom CsWinRT version

Note: The error message might not be exactly like this in english my system is throwing German error messages.