[SocketListener] Don't reopen if server is shutting down.

[Slut]

12:00 [Info] [Discord Ext] Disconnected all clients - server shutdown.
12:00 PM [Warning] [Discord Ext] Discord connection closed: code 1005, Reason: 
12:00 PM [Warning] [Discord Ext] Attempting to reconnect to Discord...
12:00 PM [Warning] [Discord Ext] An error has occured: Response: An exception has occurred during the OnClose event.
12:00 PM [Warning] [Discord Ext] Discord connection closed: code 1005, Reason: 
12:00 PM [Warning] [Discord Ext] Attempting to reconnect to Discord...
12:00 PM [Warning] [Discord Ext] An error has occured: Response: An exception has occurred during the OnClose event.
12:00 [Info] Loading Oxide Core v2.0.3773...

Extension reopening during restart, lemme know if there's a better way of doing so.

[PsychoTea]

Merged. Thanks