More efficient syncing

Thank you @PotOfCoffee2Go I ended up taking some of your code from #8101 to get this up and running. There's still some stuff missing (like the tests!) but it gets things moving.

plugins/tiddlywiki/multiwikiserver/modules/routes/handlers/get-wiki.js

@@ -77,6 +77,10 @@ exports.handler = function(request,response,state) {
 			title: "$:/config/multiwikiclient/recipe",
 			text: recipe_name
 		});
+		writeTiddler({
+			title: "$:/state/multiwikiclient/recipe/last_tiddler_id",
+			text: $tw.mws.store.getRecipeLastTiddlerId(recipe_name).toString()
+		});
 		response.write(template.substring(markerPos + marker.length))
 		// Finish response
 		response.end();