Purpose
=======
Having some usability check to be sure to make the pay
for everyone, and don't loose contracts.
We would like to remove incoming and to renew columns in
hr.contract and replace them by a kanban state. In employee, we would
like to add warning on the kanban to warn the hr responsible there
is no contract or a contract is about to expire
Specification
=============
hr.contract kanban:
- add a kanabn state
- it becomes red automatically when the contract is in running and expire in 7 days
- add aquick search in filter to filter on expered soon
- the kanban state can be changed manaually (in case of there is several rh)
- sort by contract end date set first (more close of today first)
Employee kanban
- add an red icon if there is no contract in Runnig status OR there is a
kanban state red in their contract (whatever the status).
- add a quick seaach on employee with warning
- State pending + green = incoming
- State confirmed + red = about to expire / to renew
closesodoo/odoo#33489
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>