Add support for SQLite as a additional datasource for the internal database

[silentninja]

Problem.

Our current installation process requires the user to set up a Postgres server, and a database in order to start Mathesar which adds more complexity to our installation process. While we provide a default Postgres server along with our docker-compose, other installation packages don't come with a default Postgres server.

Proposed solution

We should provide using SQLite as a datasource option for our internal database. This makes it easier for someone with an existing external Postgres database to try out Mathesar

Additional context

Postgres-specific field is used in only one place
https://github.com/centerofci/mathesar/blob/1d49c44d26ebcf7777b7ba29572f678930ba5942/mathesar/models/base.py#L890

Migration should be written to change the ArrayField to a JsonField with list as the default initializer. The migration should also take into consideration to move the existing data from the ArrayField into JsonField