New sponsor logo

Fix CSS bug which prevented links from being clickable when using
overlayed view mode.

index.html

@@ -239,6 +239,7 @@ <h2 style="text-align: center">Professional support and custom development</h2>
                     <div class="sponsors">
                         <h2>Converse is supported by:</h2>
                         <ul >
+                            <li><a href="https://www.dotcom-monitor.com/sponsoring-open-source-projects/?utm_source=conversejs" target="_blank" rel="noopener"><img style="width: 13em" src="/media/logos/dotcom-monitor.svg" alt="Dotcom-Monitor"></a></li>
                             <li><a href="https://bairesdev.com/sponsoring-open-source-projects/?utm_source=conversejs" target="_blank" rel="noopener"><img style="width: 13em" src="/media/logos/bairesdev-primary.png" alt="BairesDev"></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>
                             <li><a href="https://www.keycdn.com?utm_source=conversejs" target="_blank" rel="noopener"><img style="height: 3em" src="/logo/keycdn.svg" alt="KeyCDN"></a></li>

src/plugins/rootview/styles/root.scss

@@ -3,7 +3,6 @@ converse-root {
     &.converse-overlayed {
         bottom: 0;
         left: 0;
-        height: 100%;
         padding-left: env(safe-area-inset-left);
         padding-right: env(safe-area-inset-right);
         position: fixed;