Since [1] when Bootstrap 5 was introduced, the images of search results are not aligned anymore. This is because the detail part of the result has been set to `flex-grow-1`. This commit restores the former flex parameterisation through a new class. The fix is applied both on the autocomplete results template and the hybrid results element template (used to render `/website/search`). [1]: https://github.com/odoo/odoo/commit/971e5a91aab96d36129a823e03f1f9f1b1293968 task-2951028 closes odoo/odoo#97944 Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>