New sponsor Blokt and remove Talentplot

docs/source/_templates/sponsors.html

@@ -18,8 +18,8 @@
             <img style="height: 3em" src="/logo/b1-systems.svg" alt="B1 Systems">
         </a>
     </li>
-    <li><a href="https://talentplot.com/?utm_source=conversejs" target="_blank" rel="noopener">
-            <img style="width: 9em" src="/logo/talentplot.svg" alt="Talentplot">
+    <li><a href="https://blokt.com/?utm_source=conversejs" target="_blank" rel="noopener">
+            <img style="width: 9em" src="/logo/blokt.png" alt="Blokt Crypto & Privacy">
         </a>
     </li>
 </ul>

index.html

@@ -251,7 +251,7 @@
                             <li><a href="https://www.codefirst.co.uk/?utm_source=conversejs" target="_blank" rel="noopener"><img style="width: 12em; padding-top: 0.5em" src="/logo/codefirst.png" alt="Codefirst"></a></li>
                             <li><a href="https://wikisuite.org/?utm_source=conversejs" target="_blank" rel="noopener"><img style="height: 4em" src="/logo/wikisuite-white.png" alt="WikiSuite"></a></li>
                             <li><a href="https://www.b1-systems.de/?utm_source=conversejs" target="_blank" rel="noopener"><img style="height: 5em" src="/logo/b1-systems.svg" alt="B1 Systems"></a></li>
-                            <li><a href="https://talentplot.com/?utm_source=conversejs" target="_blank" rel="noopener"><img style="width: 12em" src="/logo/talentplot-white.svg" alt="Talentplot"></a></li>
+                            <li><a href="https://blokt.com/?utm_source=conversejs" target="_blank" rel="noopener"><img style="width: 12em" src="/logo/blokt.png" alt="Blokt Crypto & Privacy"></a></li>
                         </ul>
                     </div>