fix(sf): fix port startparameter (#3650)

Change in the documentation on Satisfactory Game Server Wiki regarding how ports work

Author: johnoclockdk

lgsm/config-default/config-lgsm/sfserver/_default.cfg

@@ -15,7 +15,7 @@ beaconport="15000"
 port="7777"
 
 ## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
-startparameters="FactoryGame -ServerQueryPort=${queryport} -BeaconPort=${beaconport} -GamePort=${port} -log -unattended"
+startparameters="FactoryGame -ServerQueryPort=${queryport} -BeaconPort=${beaconport} -Port=${port} -log -unattended"
 
 #### LinuxGSM Settings ####