chore(UPM-61578): Fixed HM role names

[crudo]

This pull request updates the documentation for user roles in Hybrid Manager to standardize and clarify the naming of roles. The changes improve consistency and readability by using title case for all role names and aligning them with their functional descriptions.

Documentation updates for user roles:

• Standardized all role names to title case (e.g., "Organization administrator" → "Organization Administrator", "Project owner" → "Project Owner") for consistency and clarity.
• Updated some role names to better reflect their functions, such as changing "GenAI Builder user" to "GenAI Builder Editor".
• Applied these naming conventions to both organization-level and project-level roles throughout the documentation.

See https://github.com/EnterpriseDB/upm-beaco-ff-base/pull/443

Role ID	Old name	New name
rol_org_appliance_admin	platform admin	Platform Administrator
rol_org_owner	owner	Organization Owner
rol_org_admin	admin	Organization Administrator
rol_prj_catalog_data_reader	catalog data reader	Catalog Data Reader
rol_prj_catalog_data_writer	catalog data writer	Catalog Data Writer
rol_prj_migration_portal_projects_editor	Migration Portal projects editor	Migration Portal Projects Editor
rol_prj_migration_portal_projects_owner	Migration Portal projects owner	Migration Portal Projects Owner
rol_prj_migration_portal_projects_viewer	Migration Portal projects viewer	Migration Portal Projects Viewer
rol_prj_owner	owner	Project Owner
rol_prj_editor	editor	Project Editor
rol_prj_viewer	viewer	Project Viewer
rol_prj_pipeline_editor	Pipeline editor	Pipeline Editor
rol_org_genai_builder_user	GenAI Builder user	GenAI Builder Editor
rol_prj_estate_ingester	estate ingester	Estate Ingester