Move all config definitions to their respective modules

Modules/NetworkMessenger.lua

@@ -2,6 +2,11 @@ local _, shared = ...
 ---@cast shared HeimdallShared
 local ModuleName = "NetworkMessenger"
 
+---@class HeimdallNetworkMessengerConfig
+---@field enabled boolean
+---@field debug boolean
+---@field interval number
+
 ---@class NetworkMessenger
 shared.NetworkMessenger = {
 	Init = function()