106 - Enable django-linear-migrations

[earthcomfy]

Closes: #106

This PR is to configure django-linear-migrations so that linear migration history can be ensured.

[CLAassistant]

All committers have signed the CLA.

[earthcomfy]

@brylie After I updated my branch, I saw that a custom migration command was created. Quoting django_linear_migrations:

The app relies on overriding the built-in makemigrations command. If your project has a custom makemigrations command, ensure the app containing your custom command is above django_linear_migrations, and that your command subclasses its Command class:

Thus, I've updated the custom migration command.

[codecov[bot]]

Codecov Report

Base: 75.71% // Head: 75.71% // No change to project coverage :thumbsup:

Coverage data is based on head (ef1d555) compared to base (298ee42). Patch has no changes to coverable lines.

Additional details and impacted files

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[brylie]

@all-contributors please add @earthcomfy for code

[allcontributors[bot]]

@brylie

I've put up a pull request to add @earthcomfy! :tada: