Describe the bug
Subdomains with extra-config does not work if player uses different low/high case letters.

To Reproduce
Steps to reproduce the behavior:

1. Setup an virtual-host-config for a subdomain on velocity version of the plugin.
2. Add the subdomain to the serverlist and ping it. Yep it works. For example: testserver.com
3. Try using TestServer.com. Default server motd shows up.

Expected behavior
virtual-host-config should respect high/low letters, however you type the subdomain in. TesTSErver.com should work as good as testserver.com

Screenshots

Server Software and Version:

• Vendor: Velocity
• Minecraft Version: 1.19.2
• Current:

Additional context
Thanks for this amazing plugin :D