public async Task getData()
        {
            var client = new HttpClient();
            HttpResponseMessage response = await client.GetAsync(new Uri("https://api.nomics.com/v1/currencies/ticker?key=d841f8fbafb482e9fa268028947844ea7783b5dd&interval=1d&limit=10"));
            var jsonString = await response.Content.ReadAsStringAsync();
            JsonArray root = JsonValue.Parse(jsonString).GetArray();
            for (uint i = 0; i < root.Count; i++)
            {
                string id = root.GetObjectAt(i).GetNamedString("id");
                string name = root.GetObjectAt(i).GetNamedString("name");
                decimal price = decimal.Parse(root.GetObjectAt(i).GetNamedString("price"));
                Coins.Add(new Coin {
                    id = id,
                    name = name,
                    price = price,
                    logo = "https://cryptoicon-api.vercel.app/api/icon/" + id.ToLower()
                });
            };
            foreach (var coin in Coins)
            {
                OldCoins.Add(coin);
            }
        }

        public async Task refreshData()
        {
            var client = new HttpClient();
            HttpResponseMessage response = await client.GetAsync(new Uri("https://api.nomics.com/v1/currencies/ticker?key=d841f8fbafb482e9fa268028947844ea7783b5dd&interval=1d&limit=10"));
            var jsonString = await response.Content.ReadAsStringAsync();
            JsonArray root = JsonValue.Parse(jsonString).GetArray();
            for (uint i = 0; i < root.Count; i++)
            {
                string id = root.GetObjectAt(i).GetNamedString("id");
                string name = root.GetObjectAt(i).GetNamedString("name");
                decimal price = decimal.Parse(root.GetObjectAt(i).GetNamedString("price"));
                Coins.Add(new Coin
                {
                    id = id,
                    name = name,
                    price = price,
                    logo = "https://cryptoicon-api.vercel.app/api/icon/" + id.ToLower()
                });

            }
            foreach(var item in OldCoins)
            {
                Coins.Remove(item);
            }
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            refreshData();
        }