fix: comments were kinda ass

lib/utils/app_config.dart

@@ -1,2 +1,2 @@
 const kUpdateServerUrl = 'https://updater.brammie15.dev';
-const kExportServerUrl = 'https://your-server.com/api/backup';
+const kExportServerUrl = 'https://kooltab.brammie15.dev/api/backup';

lib/utils/app_update_util.dart

@@ -54,14 +54,12 @@ class AppUpdateUtil {
 
   AppUpdateUtil({required this.serverUrl});
 
-  /// Gets the installed app version
   Future<String> currentVersion() async {
     final info = await PackageInfo.fromPlatform();
     debugPrint("Current app version: ${info.version}");
     return info.version;
   }
 
-  /// Checks the update server
   Future<UpdateInfo?> checkForUpdate() async {
     final version = await currentVersion();