Don't Merge This, Just Seeing if it runs the Tests

[liamjdavis]

This pull request includes several changes to the access_amherst_backend project, focusing on environment-specific settings, test improvements, and code cleanup. The most important changes include the addition of environment-specific settings, removal of skipped test markers, and cleanup of redundant code.

Environment-specific settings:

• access_amherst_backend/access_amherst_backend/settings/__init__.py: Added logic to load environment-specific settings based on the DJANGO_ENV environment variable.
• access_amherst_backend/access_amherst_backend/settings/base_settings.py: Renamed from settings.py and updated paths and static files settings. [1] [2] [3]
• access_amherst_backend/access_amherst_backend/settings/production.py: Created file to define production-specific settings.
• access_amherst_backend/access_amherst_backend/settings/testing.py: Created file to define testing-specific settings.

Test improvements:

• access_amherst_backend/access_amherst_tests/test_email_saver.py: Removed @pytest.mark.skip decorators from multiple test functions to enable them for testing. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16]
• access_amherst_backend/access_amherst_tests/test_generate_map.py: Removed @pytest.mark.skip decorators from test functions to enable them for testing. [1] [2] [3] [4]

Code cleanup:

• access_amherst_backend/access_amherst_algo/management/commands/daily_mammoth_workflow.py: Removed the daily_mammoth_workflow management command as it is no longer needed.