[IMP] website: remove main title of Masonry block snippet
[IMP] website: remove main title of Masonry block snippet

Part of https://github.com/odoo/odoo/pull/46773
task-2191381
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo