Before this commit, the sync buttons refactored in https://github.com/odoo/odoo/pull/68700 would appears in all calendar views (sale,time-off,...). This commit only displays them in the calendar event view. closes odoo/odoo#75702 Taskid: 2633415 Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>