fix for file_upload not getting validated in safari

templates/standalone/inputs.julius

@@ -59,6 +59,7 @@
     resetFileLabel();
     input.classList.add('file-input__input--hidden');
     input.addEventListener('change', function() {
+      input.dispatchEvent(new Event('input'));
       if (isMulti) {
         renderFileList(input.files);
       }