do not apply touch start hack on emojis

app/assets/javascripts/discourse/lib/safari-hacks.js.es6

@@ -123,6 +123,10 @@ function positioningWorkaround($fixedElement) {
 
   const checkForInputs = _.debounce(function(){
     $fixedElement.find('button:not(.hide-preview),a:not(.mobile-file-upload):not(.toggle-toolbar)').each(function(idx, elem){
+      if ($(elem).parents('.emoji-picker').length > 0) {
+        return;
+      }
+
       if ($(elem).parents('.autocomplete').length > 0) {
         return;
       }