This commit sets the bottom margin of `.o_x2m_control_panel` at the positive amount of the negative top margin of `.o_list_renderer` so that the `.o_cp_pager` buttons are not cropped task-3422214 part of task-3326263 closes odoo/odoo#129128 X-original-commit: 0e40d65382c37ad594aae351435f5bea14903cd6 Signed-off-by: Pierre Paridans (app) <app@odoo.com>