Fix steam issues when recreating the client connection

[cBournhonesque]

There are several issues with NetworkingConfigEntry:

• Incorrect assert in networking_types Noxime/steamworks-rs#168
• Cannot open networking sockets using NetworkConfigEntry options. Noxime/steamworks-rs#169

Apart from that:

• Steam works on 0.13.0

• It is broken since the changes where we re-create the ClientConnection whenever we try to connect. (it still works if we create the steamworks::client only once during the program)

• What I tried:

  • Dropping the existing ClientConnection (which calls steam api's shutdown) before re-creating the new one. Looks like this doesn't work because steams "shutdown" api pretty much does nothing; steam api is running until the program is shutdown: OnDestroy SteamAPI.Shutdown() is NOT working rlabrecque/Steamworks.NET#187 (comment))
  • tried initializing the steamworks clients only once via OnceCell, the client is able to connect, but is then disconnected immediately with reason: RemoteBadCert
  • If I connect immediately when creating the client, it works. It just doesn't work if I delay the connection by connecting only when I click on the 'connect' button. (even if I didn't delete the Client, but I just re-use the same one instead)
  • I tried adding a background system that just runs steam callbacks at all times even if we're not connected, but that didn't help either
  • in the file 'cef_log.previous, i See logs saying Error parsing cert retrieved from AIA (as DER). Couldn't read tbsCertificate as SEQUENCE. Failed parsing Certificate`
  • INTERESTING QUIRK: if I connect immediately when starting the client app, then I can disconnect/reconnect at will using the button!!! (meaning that everything works). The issue is that without that initial connection, I get a RemoteBadCert
  • If I connect immediately when starting the app, it works
  • If I don't connect immediately; on the first connection attempt I get disconnected with an error RemoteBadCert, but future connection attempts work!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.57%. Comparing base (64226bf) to head (eb6a06f).
Report is 2 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #242      +/-   ##
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+ Coverage   61.56%   61.57%   +0.01%     
==========================================
  Files         144      144              
  Lines        9070     9070              
==========================================
+ Hits         5584     5585       +1     
+ Misses       3486     3485       -1     

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