title: How would I make a new tabitem using Dragablz?
body: <p>I've been trying to make something similiar to chrome, using WebView2 and Dragablz.
  I thought it would be similiar to normal TabControl when it comes to making a new tab but I've terribly underestimated what I wanted to make, I get an exception thrown at me for doing this:</p>
  <pre><code>        public TabItem NewTab(string title)
      {
          WebViewA Browser = new WebViewA();
  
          TextBox BrowserSettings = new TextBox
          {
              Text = title,
              IsEnabled = false,
              TextWrapping = TextWrapping.NoWrap,
          };
          TabItem TabSettings = new TabItem
          {
              Content = Browser,
              Header = BrowserSettings,
              AllowDrop = true
          };
  
          this.TabControlShit.SelectedIndex = this.TabControlShit.Items.Add(TabSettings); // it throws the exception over here
          return TabSettings;
      }
  </code></pre>
  <p>I have 0 clue on how to make a new tab on Dragablz, though it is fairly easy when it comes to WPF's tabcontrol. Could anyone enlighten me?</p>