Take the sample data the Front End is using and add it to the init.sql script

[iFialAtFail]

The front end is currently using a JSON file with a bunch of data in it. We should convert that data into INSERT statements and insert into the backend, then setup a docker-compose.yaml file with the backend deployed for the front end to test against it, using the data they're already used to.

[iFialAtFail]

I started doing this but then noticed that the data in the front end example is structured different. There's an additional 1:many "characteristics" field and a 1:many relationship for images (rather then the original assumption on my part of 1:1.

Will need to make a new ticket and work on the BE first before this ticket can be completed.