Refactor NetworkMessenger initialization to use ReactiveValue for queue management

Modules/NetworkMessenger.lua

@@ -16,8 +16,10 @@ shared.NetworkMessenger = {
 	Init = function()
 		RegisterAddonMessagePrefix(Heimdall_Data.config.addonPrefix)
 
-		if not shared.networkMessenger then shared.networkMessenger = {} end
-		if not shared.networkMessenger.queue then shared.networkMessenger.queue = {} end
+		shared.networkMessenger = {
+			queue = ReactiveValue.new({}),
+		}
+
 		if not shared.networkMessenger.ticker then
 			local function DoMessage()
 				--if Heimdall_Data.config.networkMessenger.debug then