Replace the expand/collapse ckeditor button by our own to save space

www/pad/main.js

@@ -620,6 +620,23 @@ define([
                 }
 
 
+                // Expand / collapse the toolbar
+                var $existingButton = $bar.find('#cke_1_toolbar_collapser');
+                var $collapse = Cryptpad.createButton(null, true);
+                $existingButton.hide();
+                $collapse.removeClass('fa-question');
+                var updateIcon = function () {
+                    $collapse.removeClass('fa-caret-down').removeClass('fa-caret-up');
+                    var isCollapsed = !$bar.find('.cke_toolbox_main').is(':visible');
+                    if (isCollapsed) { $collapse.addClass('fa-caret-down') }
+                    else { $collapse.addClass('fa-caret-up') }
+                };
+                updateIcon();
+                $collapse.click(function () {
+                    $existingButton.click();
+                    updateIcon();
+                });
+                $rightside.append($collapse);
 
                 /* add an export button */
                 var $export = Cryptpad.createButton('export', true, {}, exportFile);