fixes missing user mentions when in maximized card

client/components/main/layouts.styl

@@ -317,6 +317,9 @@ kbd
 .grabbing
   cursor: grabbing
 
+.textcomplete-dropdown
+  z-index: 2000 !important;
+
 // Implement a thiner close icon as suggested in
 // https://github.com/FortAwesome/Font-Awesome/issues/1540#issuecomment-68689950
 .fa.fa-times-thin:before