Before this PR, the `test_complete_chatbot_flow_ui` would sometimes fail
when checking if the user can add a reaction to a message.
There are two issues:
- This step uses the `contains` helper and specify the live chat `ShadowRoot`
as the target. However, the `contains` helper uses a mutation observer
that observes the light DOM thus, changes in the shadow root are not
correctly observed.
- The target passed to the `contains` helper is the `ChatWindow` DOM
element but this element can be unmounted in-between.
This PR fixes this issue.
fixes runbot-56670
closesodoo/odoo#153382
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
tsm-odoo
b93ba8f631