[FIX] web: on MAC, remove access keys activation interference

On MAC, some characters can only be typed using the ALT+Number that was
reserved for the menu access keys.
There is a system in place to collect the ALT+Number keys and force the
activation of the shortcut to make the experience better for all users
across all machines.

This fix remove this system that collects ALT+Number or other keys on MAC

Ticket number : 1887171

addons/web/static/src/js/chrome/keyboard_navigation_mixin.js

@@ -141,6 +141,13 @@ odoo.define('web.KeyboardNavigationMixin', function (require) {
                 });
                 this._addAccessKeyOverlays();
             }
+            // on mac, there are a number of keys that are only accessible though the usage of
+            // the ALT key (like the @ sign in most keyboards)
+            // for them we do not facilitate the access keys, so they will need to be activated classically
+            // though Control + Alt + key (case sensitive), see https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/accesskey
+            if (this.BrowserDetection.isOsMac())
+                return;
+
             if (keyDownEvent.altKey && !keyDownEvent.ctrlKey && keyDownEvent.key.length === 1) { // we don't want to catch the Alt key down, only the characters A to Z and number keys
                 var elementWithAccessKey = [];
                 if (keyDownEvent.keyCode >= 65 && keyDownEvent.keyCode <= 90 || keyDownEvent.keyCode >= 97 && keyDownEvent.keyCode <= 122) {