Change: [Network] Update server's NetworkServerGameInfo only when needed

Split the updating in a "static" version that only needs to be called when a new map is loaded or some settings are changed, and a "dynamic" version that updates everything that changes regularly such as the current game date or the number of spectators.

src/table/settings.ini

@@ -3962,6 +3962,7 @@ type     = SLE_STRB
 flags    = SLF_NOT_IN_SAVE | SLF_NO_NETWORK_SYNC
 guiflags = SGF_NETWORK_ONLY
 def      = nullptr
+proc     = UpdateClientConfigValues
 cat      = SC_BASIC
 
 [SDTC_STR]
@@ -4029,6 +4030,7 @@ guiflags = SGF_NETWORK_ONLY
 def      = 25
 min      = 2
 max      = MAX_CLIENTS
+proc     = UpdateClientConfigValues
 cat      = SC_BASIC
 
 [SDTC_VAR]