[FIX] web: backport mobile OS detection support

This commit backports the mobile OS detection support, and specifically
Android & iOS one to allow more specific targeting of edge cases (i.e.
disabling native date picker in the mobile iOS app only).

opw-2613810

closes odoo/odoo#75577

X-original-commit: 7015dcd56566e93418f51e8e3562f384d10b4ffa
Related: odoo/enterprise#20446
Signed-off-by: Adrien Dieudonné (adr) <adr@odoo.com>
Signed-off-by: Pierre Paridans <pparidans@users.noreply.github.com>

addons/web/static/src/legacy/js/services/config.js

@@ -42,6 +42,20 @@ var config = {
          * @type Number
          */
         size_class: null,
+        /**
+         * Mobile OS (Android) device detection using userAgent.
+         * This flag doesn't depend on the size/resolution of the screen.
+         *
+         * @return Boolean
+         */
+        isAndroid: isAndroid,
+        /**
+         * Mobile OS (iOS) device detection using userAgent.
+         * This flag doesn't depend on the size/resolution of the screen.
+         *
+         * @return Boolean
+         */
+        isIOS: isIOS,
         /**
          * A frequent use case is to have a different render in 'mobile' mode,
          * meaning when the screen is small.  This flag (boolean) is true when