Enhancements and Fixes for Module Cloning and State Transfer Procedures

[Amygos]

This pull request includes several improvements and fixes related to the module cloning process and state transfer procedures:

• Reconfigured Service Ports: Ensures that new service ports assigned after module cloning are correctly set in the database.
• Environment Variable Cleanup: Removes unnecessary environment variables as part of the module cloning process.
• MariaDB Password Reset: Resets the MariaDB passwords to ensure they are different from the original module instance after cloning.
• Graceful Service Shutdown: Ensures that NethVoice services are gracefully shut down before terminating the containers' volume transfer.

After the clone/move, the module must be reconfigured via configure-module to be fully operational.

https://github.com/nethesis/ns8-nethvoice/issues/210

[DavidePrincipi]

• Graceful Service Shutdown: Ensures that NethVoice services are gracefully shut down before terminating the containers' volume transfer.

I'll try to fix this behavior at core level too