[FIX] website: hide block in mobile display mode

Before this commit, display mode is changed to block after hiding it on mobile mode.
After this commit, only change display mode for mobile and use inherited mode otherwise.

task-2431659

closes odoo/odoo#66787

X-original-commit: 83112caf
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>