feat(*): Add private variables

YouTubeChannelDownloader/Program.cs

@@ -18,6 +18,14 @@ namespace YouTubeChannelDownloader
 {
     internal class Program
     {
+        #region Private Variables
+
+        private static DownloadedVideosContext _db = new DownloadedVideosContext();
+        private static string _channelId = Environment.GetEnvironmentVariable("CHANNEL_ID", EnvironmentVariableTarget.Process);
+        private static YoutubeClient _youtube = new YoutubeClient();
+
+        #endregion Private Variables
+
         private static async Task Main(string[] args)
         {
         }