Implement live syncback service properties encoding and enhance syncback functionality

- Introduced a new `encodeService` helper in the plugin to serialize service properties, attributes, tags, and references alongside children data.
- Updated the `performSyncback` function to utilize the new encoding method, ensuring all services are processed without child-only restrictions.
- Extended the `ServiceChunk` struct to include fields for properties, attributes, tags, and references, improving data handling during syncback.
- Modified the `build_dom_from_chunks` function to apply service properties and resolve references when reconstructing the service instances.
- Added comprehensive tests to validate the new service properties handling, ensuring accurate synchronization and data integrity.

These enhancements significantly improve the live syncback process, allowing for better service data management and consistency.

plugin/src/App/init.lua

@@ -1,6 +1,5 @@
 local ChangeHistoryService = game:GetService("ChangeHistoryService")
 local Players = game:GetService("Players")
-local SerializationService = game:GetService("SerializationService")
 local ServerStorage = game:GetService("ServerStorage")
 local RunService = game:GetService("RunService")
 
@@ -47,6 +46,8 @@ local Theme = require(script.Theme)
 
 local Http = require(Packages.Http)
 
+local encodeService = require(Plugin.ChangeBatcher.encodeService)
+
 local Page = require(script.Page)
 local Notifications = require(script.Components.Notifications)
 local TextButton = require(script.Components.TextButton)
@@ -641,12 +642,8 @@ function App:performSyncback()
 	local services = {}
 	for _, className in SYNCBACK_SERVICES do
 		local ok, service = pcall(game.FindService, game, className)
-		if ok and service and #service:GetChildren() > 0 then
-			local buf = SerializationService:SerializeInstancesAsync(service:GetChildren())
-			table.insert(services, {
-				className = className,
-				data = buf,
-			})
+		if ok and service then
+			table.insert(services, encodeService(service))
 		end
 	end