docs: add generated reference files

[lukegalbraithrussell]

Summary

This is a follow up to #2308 . adds the actual reference files by deleting the line in .gitignore

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 92.74%. Comparing base (22117c2) to head (5f37cdf).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2313   +/-   ##
=======================================
  Coverage   92.74%   92.74%           
=======================================
  Files          38       38           
  Lines       10660    10660           
  Branches      687      687           
=======================================
  Hits         9887     9887           
  Misses        761      761           
  Partials       12       12           

Flag	Coverage Δ
cli-hooks	95.23% <ø> (ø)
cli-test	94.74% <ø> (ø)
oauth	77.39% <ø> (ø)
socket-mode	61.87% <ø> (ø)
web-api	97.99% <ø> (ø)
webhook	96.66% <ø> (ø)

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[zimeg]

@lukegalbraithrussell LGTM! And an incredible thanks for tackling this.

With quick reading this all is so solid but I remain open to follow ups as needed for both jsdoc and file organization alike. For now I think it'd be awesome to ship this 🚢 💨

[zimeg]

👁️‍🗨️ Unrelated to this PR, but this file makes it clear that keeping dependencies at the latest versions is meaningful for reference.

A change landed in @slack/[email protected] that updated this from team_domain_changed to be the expected team_domain_change event and at the moment @slack/web-api uses:

node-slack-sdk/packages/web-api/package.json

Line 52 in 22117c2

"@slack/types": "^2.9.0",

[zimeg]

👁️‍🗨️ This link might be finding main instead of a specific commit, though I do think we can revisit this for neartime releases!

Edit: Added relevant typedoc configs following 🔍

node-slack-sdk/packages/cli-test/typedoc.json

Lines 15 to 16 in 22117c2

	"gitRevision": "main",
	"includeVersion": true,