The Enterprise-only Share URL menu and related mobile menu button have been removed because this capability now lives in the community web module. This reduces duplicate maintenance while keeping the feature available where progressive web app support is now shared.

This commit removes the code related to the Share URL menu item from the enterprise
version of odoo, since the code has been moved to the community version. It was no
longer relevant to support only this menu item and BurgerMenu button in enterprise,
since PWA are also installable in the community version.

Tests have been moved as well in the /web module of community.

The WhatsApp integration has been internally reorganized so chat channel detection now sits with the discussion channel model. This should not change user behavior, but it makes the code easier to maintain and align with the related community update.

This commit moves isChatChannel to discuss.channel model.

PR community: https://github.com/odoo/odoo/pull/235983

This update reorganizes how AI features read conversation channel information, making the implementation cleaner and easier to maintain. There is no expected change in day-to-day behavior for users, but it helps keep AI-related messaging features reliable as the platform evolves.

PR community: https://github.com/odoo/odoo/pull/235260