Add back button to login page

admin/index.php

@@ -475,6 +475,9 @@ function print_login()
                     </div>
                 </div>
             </form>
+            <a class="btn btn-default" href="<?php echo $hesk_settings['hesk_url']; ?>">
+                <i class="fa fa-chevron-left"></i> <?php echo $hesklang['back']; ?>
+            </a>
         </div>
     </div>
 </div>

inc/view_attachment_functions.inc.php

@@ -281,7 +281,6 @@ function display_dropzone_field($url, $id = 'filedrop', $max_files_override = -1
         paramName: 'attachment',
         url: '" . $url . "',
         parallelUploads: ".$max_files.",
-        uploadMultiple: true,
         maxFiles: ".$max_files.",
         acceptedFiles: ".json_encode($acceptedFiles).",
         maxFilesize: ".$size.", // MB