feat: improve formatting output
* duration is now in human readable format
* list of artists is now capped at 140 chars max
chore(docker): upgrade Docker image and lint it
chore(spotify): refactor spotify wrapper & function names
feat(spotify): add playlist support, add pre-commit checks
fix: set right visibility in structs & fields
- Cleanup old imports
feat: add support for album links
- perform little code refactor, create new module spotify
Co-authored-by: Davide Polonio <poloniodavide@gmail.com>
Reviewed-on: #1