Easy docker migrations

[ChrisLovering]

This PR adds two things

1. An easy way to generate migrations running under a pure docker setup
   • Simply run poetry run task dockermigrations and all the migrations will be created
   • Under the hood this calls docker exec and then through the magic of volumes it appears in the local system
2. Add a persistent volume for postgres data
   • This means docker-compose down won't lose your db data anymore.
   • If needed you can still do docker-compose down --volumes

[netlify[bot]]

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[coveralls]

Coverage remained the same at 100.0% when pulling 8080d24da3b76697d5f63edba10248ae0eb6e346 on easy-docker-migrations into 613e0730c5391c33d35106049bb6e8537e644446 on main.

[MarkKoz]

The home app's migrations should also be mounted. This seems to be the only other app that has models.

[ChrisLovering]

The home app's migrations should also be mounted. This seems to be the only other app that has models.

Not sure why I forgot you mentioning other apps having migrations yesterday. I've force pushed a new mount 👍