fix instance code

src/index.ts

@@ -118,7 +118,7 @@ async function updateInstances(): Promise<void> {
 				const existingInstance = instanceNames.get(instance.name);
 				if (existingInstance) {
 					for (const key of Object.keys(instance)) {
-						if (!existingInstance[key]) {
+						if (!(key in existingInstance)) {
 							existingInstance[key] = instance[key];
 						}
 					}

src/webpage/instances.json

@@ -3,7 +3,7 @@
 		"name": "Spacebar",
 		"description": "The official Spacebar instance.",
 		"image": "https://raw.githubusercontent.com/spacebarchat/spacebarchat/master/branding/png/Spacebar__Icon-Discord.png",
-        "urls":{
+		"urls": {
 			"wellknown": "https://spacebar.chat/",
 			"api": "https://old.server.spacebar.chat/api",
 			"cdn": "https://cdn.old.server.spacebar.chat",