add black code formatter in yml along with a pre-commit hook!

[DhyeyMavani2003]

This pull request includes several changes to improve code formatting and consistency across the project, as well as the addition of a code formatter to the CI/CD pipeline.

Code Formatting and Consistency:

• access_amherst_backend/access_amherst_algo/apps.py: Updated string literals to use double quotes for consistency.
• access_amherst_backend/access_amherst_algo/email_scraper/email_parser.py: Reformatted function definitions and string literals to use double quotes for consistency. [1] [2] [3] [4] [5] [6]
• access_amherst_backend/access_amherst_algo/management/commands/: Updated string literals to use double quotes in all command files for consistency. [1] [2] [3] [4] [5] [6] [7]
• access_amherst_backend/access_amherst_algo/migrations/: Reformatted string literals and dependencies for consistency. [1] [2] [3] [4] [5] [6]
• access_amherst_backend/access_amherst_algo/models.py: Reformatted string literals and comments for consistency.

CI/CD Pipeline:

• .github/workflows/django.yml: Added a step to run the Black code formatter in the CI/CD pipeline.
• .pre-commit-config.yaml: Added configuration for the Black code formatter to the pre-commit hooks.