bugfix: Fix an error when hiding the emoji dropdown

src/plugins/sib-emoji-picker.js

@@ -48,12 +48,14 @@ converse.plugins.add('sib-emoji-picker', {
         // Remove any existing pickers
         // Happens when the room is switched with the dropdown opened
         // TODO: Add a listener on model change (hidden prop) to automatically hide the menu
-        picker && picker.remove();
+        if (picker) {
+          picker.remove();
+        }
 
         picker = new Picker();
         picker.classList.add('light');
         picker.addEventListener('emoji-click', ev => this.insertIntoTextArea(ev.detail.unicode));
-        this.querySelector('.dropdown-menu').appendChild(picker);
+        this.menu.appendChild(picker);
 
         await _showMenu.apply(this, arguments);
 
@@ -69,7 +71,9 @@ converse.plugins.add('sib-emoji-picker', {
        */
       hideMenu() {
         _hideMenu.apply(this, arguments);
-        picker.remove();
+        if (picker) {
+          picker.remove();
+        }
       },
 
       /**