create data source from devcontainer

[landsman]

I would love to create a new data source via devcontainer json config.

Expectation:

1. define data source in devcontainer config
2. see database in "database plugin" without need to set it up

[trukhinyuri]

Hi! Hi! To make this happen, we need to support database configuration in the customization field. I’ve created an issue for this in YouTrack—please vote for it and leave a comment if there’s anything else that should be added. Thank you very much for the great idea!
IJPL-189429 Auto-register datasources from devcontainer.json (customization)