fix: Fixes networking issues

[kamronbatman]

Summary

• Puts back EventSink.SocketConnect.
• Reverts networking change to push the networking to a separate thread.
• Reverts changes to the firewall by removing the firewall queue.
• Fixes listeners not shutting down with the server.
• Fixes race condition causing connections to get stuck even after they are disposed.

Note

Developer Note
Networking has been reverted back to using the main thread instead of a background thread. This alleviated complexity and the requirement for concurrent queues all over the place.

[github-actions]

Qodana for .NET

1 new problem were found

Inspection name	Severity	Problems
Namespace does not correspond to file location	◽️ Notice	1

💡 Qodana analysis was run in the pull request mode: only the changed files were checked
☁️ View the detailed Qodana report

Detected 20 dependencies

Third-party software list

This page lists the third-party software dependencies used in ModernUO

Dependency	Version	Licenses
Argon2.Bindings	1.16.1	MIT
BouncyCastle.Cryptography	2.4.0	MIT
CommunityToolkit.HighPerformance	8.3.0	MIT
LibDeflate.Bindings	1.0.2.120	GPL-3.0-only
MailKit	4.7.1.1	MIT
Microsoft.Extensions.FileSystemGlobbing	8.0.0	MIT
MimeKit	4.7.1	MIT
ModernUO.CodeGeneratedEvents.Annotations	1.0.0	GPL-3.0-only
ModernUO.CodeGeneratedEvents.Generator	1.0.3.2	GPL-3.0-only
ModernUO.Serialization.Annotations	2.9.1	GPL-3.0-only
ModernUO.Serialization.Generator	2.11.3	GPL-3.0-only
Nerdbank.GitVersioning	3.6.143	MIT
PollGroup	1.5.1	BSD-3-Clause
Serilog.Sinks.Async	2.0.0	Apache-2.0
Serilog.Sinks.Console	6.0.0	Apache-2.0
Serilog	4.0.1	Apache-2.0
System.Formats.Asn1	8.0.1	MIT
System.IO.Hashing	8.0.0	MIT
System.Security.Cryptography.Pkcs	8.0.0	MIT
Zstd.Binaries	1.6.0	MIT

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