[FIX] website: fix menu direction of header dropdowns

Before this commit, the menu direction of header dropdowns was
related to the window width but it was wrong because of the right
panel. We also enable it in editor mode.

task-2312878

closes odoo/odoo#59783

Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>

addons/website/static/src/js/content/menu.js

@@ -466,6 +466,7 @@ publicWidget.registry.autohideMenu = publicWidget.Widget.extend({
  */
 publicWidget.registry.menuDirection = publicWidget.Widget.extend({
     selector: 'header .navbar .nav',
+    disabledInEditableMode: false,
     events: {
         'show.bs.dropdown': '_onDropdownShow',
     },
@@ -488,12 +489,13 @@ publicWidget.registry.menuDirection = publicWidget.Widget.extend({
      * @param {integer} liOffset
      * @param {integer} liWidth
      * @param {integer} menuWidth
+     * @param {integer} pageWidth
      * @returns {boolean}
      */
-    _checkOpening: function (alignment, liOffset, liWidth, menuWidth, windowWidth) {
+    _checkOpening: function (alignment, liOffset, liWidth, menuWidth, pageWidth) {
         if (alignment === 'left') {
             // Check if ok to open the dropdown to the right (no window overflow)
-            return (liOffset + menuWidth <= windowWidth);
+            return (liOffset + menuWidth <= pageWidth);
         } else {
             // Check if ok to open the dropdown to the left (no window overflow)
             return (liOffset + liWidth - menuWidth >= 0);
@@ -513,7 +515,7 @@ publicWidget.registry.menuDirection = publicWidget.Widget.extend({
         var liOffset = $li.offset().left;
         var liWidth = $li.outerWidth();
         var menuWidth = $menu.outerWidth();
-        var windowWidth = $(window).outerWidth();
+        var pageWidth = $('#wrapwrap').outerWidth();
 
         $menu.removeClass('dropdown-menu-left dropdown-menu-right');
 
@@ -524,10 +526,10 @@ publicWidget.registry.menuDirection = publicWidget.Widget.extend({
         }
 
         // If can't open in the current direction because it would overflow the
-        // window, change the direction. But if the other direction would do the
+        // page, change the direction. But if the other direction would do the
         // same, change back the direction.
         for (var i = 0; i < 2; i++) {
-            if (!this._checkOpening(alignment, liOffset, liWidth, menuWidth, windowWidth)) {
+            if (!this._checkOpening(alignment, liOffset, liWidth, menuWidth, pageWidth)) {
                 alignment = (alignment === 'left' ? 'right' : 'left');
             }
         }