Emulator connection allows "-0" for port

Storage Explorer Version: 1.4.0
Platform/OS Version: All
Architecture: All
Regression From: 1.3.1

Steps to Reproduce:

1. Install and start the Azurite emulator with default settings.
2. Open the Connect dialog. Select the "Attach to local emulator" option.
3. Enter "-0" for the queue port.
4. Finish and create the connection.
5. Attempt to expand the blob container group node under the emulator connection node.
6. Attempt to expand the queue group node.

Expected Experience:

• "-0" is an invalid port and blocks creating the connection.
• The blob container group node behaves normally.
• The queue group node causes errors in generating it's child nodes.

Actual Experience:

• The connection is created without incident.
• The blob container group node causes errors in generating it's child nodes. The error indicates that it's trying to use the queue endpoint (with "-0" port).

Start in the Connect dialog's local-emulator queue-port validation and reproduce the issue with "-0" using Azurite's default settings. Done means the connection is blocked for that value and expanding both blob and queue groups no longer produces errors caused by the invalid port.