fix: use CancelIoEx to cancel Windows conInputReader across threads (#…

…1305)

The Windows conInputReader uses `windows.CancelIo` to close the read
loop's input handle. Windows `CancelIo` docs indicate that call is only
appropriate for I/O operations on the same thread as the `CancelIo`
call. Since the read loop is in its own goroutine, it's likely to be on
another thread from the bubbletea Program.

This change adds a call to Windows `CancelIoEx`, which will cancel I/O
operations across threads.

Fixes #1167

inputreader_windows.go

@@ -57,7 +57,7 @@ func newInputReader(r io.Reader) (cancelreader.CancelReader, error) {
 func (r *conInputReader) Cancel() bool {
 	r.setCanceled()
 
-	return windows.CancelIo(r.conin) == nil
+	return windows.CancelIoEx(r.conin, nil) == nil || windows.CancelIo(r.conin) == nil
 }
 
 // Close implements cancelreader.CancelReader.