Add Pipfile scripts to improve usability

[ItsDrike]

There should be a more sensible way to start the bot than either being in the venv and using the start.py script to start the bot.

Instead we should focus on using Pipfile scripts which will allow to "alias" an action, providing a better way to start the bot.

This is not limited to starting the bot, other features can be implemented with this too, f.e.:

• Linting (Run pre-commit linting check on all of the files)
• Precommit (Install pre-commit)

[ItsDrike]

This will also result in README.md modification, since the way to start the bot will be updated