Brief overview of PR changes/additions

Summary

Implements full support for telnet:// links in Mudlet, allowing users to connect to MUD servers with a single click from browsers or other applications.

Usage Example

Users can now click links like:

<a href="telnet://aardmud.org:4000">Play Aardwolf MUD</a>
<a href="telnet://batmud.bat.org">Connect to BatMUD</a>

Or run from command line:

mudlet "telnet://testserver.com:2000"

Mudlet will:

1. Parse the URI
2. Find or create a matching profile
3. Auto-connect to the MUD server

TESTING

I ran it on WEB and it worked fine. I ran it from command line, it worked fine

HERE IS A DEMO VIDEO : https://github.com/user-attachments/assets/143cc98a-3453-4bd9-bbe8-5b48c58db490

Motivation for adding to Mudlet

The bounty and to improve myself and contribute

Other info (issues closed, discussion etc)

/closes #689 /claim #689