Update affix.tmpl.partial

Author: egil

docs/site/templates/bunit/partials/affix.tmpl.partial

@@ -7,7 +7,7 @@
         <img width="200" src="/sponsors/progress-blazor-300x250.png" alt="Telerik UI for Blazor – Get 40+ native Blazor UI components to build high-performing web apps. Give it a try" />
       </a>
       <p>
-        <i>Telerik UI for Blazor – Get 40+ native Blazor UI components to build high-performing web apps. 
+        <i>Telerik UI for Blazor – Get 50+ native Blazor UI components to build high-performing web apps. 
         <a href="https://www.telerik.com/campaigns/blazor/free-trial-1?utm_source=egilhansen&utm_medium=cpm&utm_campaign=blazor-trial-bunit-sponsored-message">Give it a try</a>.</i>
       </p>
     </div>