docs: add "random fact generator" custom step workshop to tutorials

[haleychaas]

Summary

Moving this workshop to the tutorials of Bolt JS.

See a preview here.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.44%. Comparing base (2ff56ee) to head (6b961f9).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   93.44%   93.44%           
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  Files          37       37           
  Lines        7674     7674           
  Branches      669      669           
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  Hits         7171     7171           
  Misses        498      498           
  Partials        5        5           

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[technically-tracy]

👏

[zimeg]

@haleychaas I'm a fan of these writings! Thanks for bringing this to the bolt docs 🤖 ✨

I'm requesting a few changes with changing best practices that we can encourage in app setups I hope. I also made note of blank templates and perhaps sample implementation to reference later. Most comments aren't blocking though I believe! 📚

[zimeg]

📎 thought: In a follow up I'm wondering if we can start from the blank template to remove configuration to the package.json file?

[haleychaas]

Good callout. I'll create a follow-up task to rework this using the blank template!

[zimeg]

Suggested change

The code in the `app.js` file initializes the Bolt app using your tokens and signing secret and enables Socket Mode. Next, it defines the `getUselessFact()` function that retrieves a random fact using Axios. It uses the Bolt framework to create a Slack function named `useless_fact_step`. This is the same function we registered in the app manifest previously; the function's name, inputs, and outputs in the code must match with the what is defined in the app manifest. Finally, a function named `main()` is used to start the Bolt app.

The code in the `app.js` file initializes the Bolt app using your tokens and signing secret and enables Socket Mode. Next, it defines the `getUselessFact()` function that fetches a random fact. It uses the Bolt framework to create a Slack function named `useless_fact_step`. This is the same function we registered in the app manifest previously; the function's name, inputs, and outputs in the code must match with the what is defined in the app manifest. Finally, a function named `main()` is used to start the Bolt app.

👁️‍🗨️ suggestion: We're making "fetch" happen

[technically-tracy]

@zimeg I'm dead lol

[zimeg]

@haleychaas Thanks for the kind followup! LGTM! 📚 ✨