[GNS3 3.0.2] The Image Manager file selection dialog does not allow you to select a file without a dot in the name

[nwhisper2014]

Describe the bug
If you select All files *.* in the Files of type field of the Image Manager file selection dialog, the list of files still does not show files without “.” in their names. But, for example, the Cisco IOU L2 17.12.1 image file is x86_64_crb_linux_l2-adventerprisek9-ms. As a result, this and similar images cannot be imported using Image Manager without renaming.

GNS3 version and operating system (please complete the following information):

• OS: GN3 gui on Arch Linux
• GNS3 version: 3.0.2
• Remote controller with SSL encryption (KVM)