This update adjusts payroll-related screens and fields for the Kenya and Luxembourg localisations so they carry the required localisation metadata. It supports more consistent country-specific payroll configuration and helps the system identify localised fields correctly.

Add the necessary l10n attributes on the fields and nodes of the localisation.

Task: 4402874

This update refreshes internal worksheet test cases to use the correct worksheet template naming instead of a generic partner name. It helps keep automated checks aligned with the worksheet feature, reducing maintenance risk without changing user-facing behavior.

Note:
- Replaced the model name `Partner` with `WorksheetTemplate`.

task-4394297