This update enhances the time off search feature within Odoo, making it easier for users to find and filter time off requests. A new 'In Contract' filter has been added, and the search results are now grouped by employee, improving organization. The default grouping has also been adjusted to exclude refused time off requests in the overview search view.

Time Off states are grouped under `Status`.
Added new filter `In Contract`.
Added back groupby by Employee.
Added default groupby exclude refused in Time Off < overview search view.

task-5941368