Refactor and rewrite

[cmathews393]

Description

1. Convert app to typer app
2. Implement supercronic for scheduling logic
3. Convert from requests library to httpx
4. Add type hinting and ruff compliance
5. Restructure modules and separate concerns better
6. Updated documentation
7. Added cover art import (Thanks @AverageDave93)
8. Reconfigured logging to use loguru instead of print statements
9. Reconfigured Dockerfile to use poetry for dependencies

Fixes #26, #25, #21, #9

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• My code is properly type hinted
• My code is Ruff compliant