Refactor existing data seeding to make use of new UseAsyncSeeding

[nanotaboada]

Description

Refactor the existing data seeding process to take advantage of the new UseAsyncSeeding feature in EF Core, improving the seeding process for large datasets.

Acceptance Criteria

• Refactor the existing seeding logic to use UseAsyncSeeding.
• Ensure that data is seeded correctly in relevant environments.
• Test the seeding process with various datasets to ensure reliability.
• Update documentation on how data seeding works in the project.

Resources

• 🔗 What's new in EF Core 9.0 - Improved data seeding