this commit aims at refining the UX for events, notably:
- create a helper for the magic button on the event_track form, because without
this the user won't be able to understand what the button does.
- on stage update, the kanban state will be automatically set to "gray"
beacause when changing stages it does not make sense to keep the previous
kanban state especially when it is set to "green" or to "red".
- make the cost of the event registration product demo data lower then the sale
price as it is not normal to have a sale price lower then the cost.
- change the style of the "discover all our events" marketing link in the event
reminder email template in order to make it pop a bit more for the user as
this is an important link
Task-2451125
closesodoo/odoo#65613
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
nounoubensebia
b3d5ce3f5f