This commit adapts the xpath for the `s_key_benefits` snippet that were
targeting `col-lg-4`.
As we switched the layout of this snippet to columns, we reviewed the
layout a bit, resulting in one single `col-12` on top, rather than
`col-4` and `col-12`.
As we remove this `col-lg-4`, we need to adapt all the xpaths.
task-4188740
Part of task-4077427
Part-of: odoo/design-themes#919
Related: odoo/odoo#180736
Signed-off-by: Outagant Mehdi (mou) <mou@odoo.com>
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>