Switched to Device code authentication

ConfigData.cs

@@ -7,21 +7,11 @@ public sealed class ConfigData {
     public string IncludeFile { get; }
     public int KeepLast { get; }
 
-    public string TenantId { get; }
-    public string ClientId { get; }
-    public string ClientSecret { get; }
-    public string UserId { get; }
-
     public ConfigData(IConfiguration config) {
         Schedule = config["Schedule"]!;
         BackupUploadRoot = config["UploadRoot"]!;
         LocalRoot = config["LocalRoot"]!;
         IncludeFile = config["IncludeFile"]!;
         KeepLast = int.Parse(config["KeepLast"]!);
-
-        TenantId = config["TenantId"]!;
-        ClientId = config["ClientId"]!;
-        ClientSecret = config["ClientSecret"]!;
-        UserId = config["UserId"]!;
     }
 }