Previous to this commit, the background of the image in the session history was grey on dark mode task-3012970 closes odoo/odoo#103160 X-original-commit: 9d94d9b84ffd683b87bb0ae9c0d2e879dc720070 Related: odoo/enterprise#32785 Signed-off-by: Pierre Paridans (app) <app@odoo.com>