[Feature Request]: External DB support

[Frooodle]

Feature Description

External DB support for security/ram optimisation and to allow multiple Stirling-PDF instances to be used along side load-balancer Best to use PostgreSQL and its gradle dependency Framework to add Oracle and MySQL easily if needed in future and should be done via the settings.yml

Why is this feature valuable?

External DB support for security/ram optimisation and to allow multiple Stirling-PDF instances to be used along side load-balancer

Suggested Implementation

No response

Additional Information

No response

No Duplicate of the Feature

• [X] I have verified that there are no existing features requests similar to my request.