The Peruvian electronic invoicing setup has been updated to show Estela as the current provider name, replacing Digiflow references in labels, help text, and translations. This keeps user-facing configuration screens aligned with the provider’s new branding without changing how invoicing works.

This PR updates the Peruvian electronic invoicing configuration to reflect the recent brand change from Digiflow to Estela (formerly Digiflow).

Changes:
- Updated help texts and string labels in `res_company.py`
- Adjusted references in `account_edi_format.py`
- Updated translations in `es.po`

This change is purely textual and does not affect logic or behavior. It ensures users see the correct branding across the Peruvian EDI settings.

Forward-Port-Of: odoo/enterprise#93649
Forward-Port-Of: odoo/enterprise#85934

Payroll administrators can now manage salary inputs through reusable payroll properties, including boolean inputs. This makes payroll configuration more consistent across contracts, benefits, salary adjustments, and country-specific payroll rules, reducing manual setup and improving maintainability.

Task: 4930632

The Budget Report now uses the analytic plan name, such as Project, instead of the generic Account label when grouping information. This makes the report easier for customers to understand and reduces confusion when reviewing budgets.

In this commit:
- Change the group by label from `Account` to the analytic plan's name (`Project`) for clarity in the Budget Report. This improves customer understanding and reduces confusion.

task-5045530