Consider merging `config` into `mathesar` package

[apollo13]

Problem

Currently mathesar has a config package containing the settings and asgi/wsgi files. Since config is a rather generic name it could clash with other packages installed from pip. It would be preferred to have something like mathesar.wsgi & mathesar.settings.production to keep everything namespaced nicely. From a Django PoV this is doable and there would be no problems.

Proposed solution

Move config.settings/asgi/wsgi into mathesar package. Probably move config.urls to mathesar.root_urls & find a place for the context processors.

I realize this is backwards incompatible, but this would be a change that you really want to do now as opposed to sometime in the future when you already reached 1.0 or so… What do you think?

[rajatvijay]

@silentninja can you take a look?

[kgodey]

I put this into our next release milestone, it seems like a quick change, and it's best to make backwards incompatible changes sooner, when we're still in alpha.