v1.0.0

The first official release! 🎉

Changelog:

• adds colour to the CLI output, successes and errors are now more visually intuitive
• updates init to also fetch the user's liked songs and metadata. Earlier, songs and metadata were fetched in the export command, so show-genres needed to be ran after an export, else it would show 0 genres. This update fixes that issue, so now show-genres has all the data it needs directly after running an init.
• adds error handling for HTTP 500 from the Spotify Web API
• adds more details and example calls to the built-in --help