Refactor code structure for improved readability and maintainability

[codedesignplus-wliscano]

This pull request updates documentation for deploying microservices in the CodeDesignPlus ecosystem, focusing on improving clarity and best practices for configuration management and deployment. The changes include a major rewrite of the secrets/configuration section for ms-services, updates to deployment instructions for both REST and gRPC entrypoints, and refinements to the ms-catalog article to better reflect domain-driven terminology.

Configuration and Secrets Management:

• Updated the section on storing secrets in Vault to emphasize a hybrid strategy: sensitive data is stored in Vault, while non-sensitive configuration is passed as environment variables via Helm. The example Vault command and image descriptions were adjusted to reflect this focus on confidential data.
• Revised the explanation of configuration precedence for .NET and CodeDesignPlus SDK, detailing how environment variables and Vault secrets override defaults for secure and flexible deployments.

Deployment Instructions:

• Changed deployment instructions for both REST and gRPC entrypoints of ms-services to use separate values-rest.yaml and values-grpc.yaml files, with explicit environment variable examples and streamlined Helm commands. [1] [2]
• Updated the Helm deployment commands and clarified the configuration files used for each entrypoint. [1] [2]

Terminology and Metadata Improvements:

• Renamed the ms-catalog documentation article to "Desplegando Nuestro Primer Servicio de Dominio: ms-catalog", updated tags and excerpt for better alignment with domain-driven design concepts, and added the "Catalogs" tag.

These changes enhance the documentation's clarity, security, and alignment with best practices for microservice deployment in Kubernetes environments.