This update fixes a critical issue in the account import feature where import options were not being properly configured, causing imports to fail. The fix ensures that field creation settings are correctly applied during the import process, allowing users to successfully import account and partner data without errors.

- It is necessary to extend the BaseImportModel to properly update `name_create_enabled_fields` in importOptions, instead of doing it in the import action.
When the import is executed, the options are retrieved from the model and the `name_create_enabled_fields` thus remains empty, preventing a smooth import.
- `this.current === "imported"` is no longer relevant for the import, so we need another solution to check the import state.

task-3549609

Forward-Port-Of: odoo/enterprise#50088
Forward-Port-Of: odoo/enterprise#48786

This update corrects how taxable amounts are calculated in US payroll salary rules. The fix ensures that tax deductions and withholdings are computed accurately based on the proper taxable income amounts, which is critical for correct employee paycheck calculations and tax compliance.

![image](https://github.com/odoo/enterprise/assets/8435879/53109d0b-8756-4e68-84e7-25268ca0bac4)

This update fixes two critical bugs in the deferred accounting reports: one where invoices weren't appearing in the correct reporting period, and another causing system errors when deferral dates are identical. These fixes ensure accurate financial reporting and prevent application crashes when processing deferred expenses.

See commits :)

Forward-Port-Of: odoo/enterprise#50092
Forward-Port-Of: odoo/enterprise#49965