[CHANGE] Split up json parsing, added getting account info

Manager.YouTube/Models/Innertube/ClientState.cs

@@ -15,6 +15,9 @@ public class ClientState : AdditionalJsonData
     
     [JsonPropertyName("SIGNIN_URL")]
     public string? SigninUrl { get; set; }
+    
+    [JsonPropertyName("INNERTUBE_CLIENT_NAME")]
+    public string? InnerTubeClient { get; set; }
 
     [JsonPropertyName("INNERTUBE_CLIENT_VERSION")]
     public string? InnerTubeClientVersion { get; set; }