Add a slack bot for StandNote

[PragatiVerma18]

Is your feature request related to a problem? Please describe.
Since most professional teams communicate over slack, adding a Slack bot would be helpful in case people want to push their minutes of the meeting to a Slack channel.

Describe the solution you'd like
Design and Develop a Slack bot that can be added to Slack and used to configure and push minutes of the meeting from StandNote to a specific Slack Channel.

Describe alternatives you've considered
Similarly, a discord bot can also be designed and developed.

Additional context
Please read the following resources to learn more about developing a Slack bot in Python:

1. How To Build a Slackbot in Python on Ubuntu 20.04 - DigitalOcean
2. Building an app with Bolt for Python - Slack API Tutorial