Add fake submissions data to seeding file

[Anissa3005]

Resolves: #467

The the fake submissions data was missing from the seeding file, therefore we did not have any seeded data for submissions

What changed

• Add the fake data to the seeding file

Testing instructions

Run npm run dev:startlocaldb Then npm run dev

Visit emulator database and see the seeded data for submissions.

To do

This is a quick fix, so we can work on the frontend. This means I didn't check in depth that fake data is as it should be.

[NabbeunNabi]

Thanks so much for working on this!