doc: remove synopsis

[avivkeller]

As titled. Re-open of #59216

cc previous approvers: @marco-ippolito @ovflowd

[richardlau]

Would URLs get redirected?
e.g.

• https://nodejs.org/docs/latest/api/synopsis.html
• https://nodejs.org/docs/latest-v24.x/api/synopsis.html

If not then I'd be inclined to not backport it to LTS releases.

[AugustinMauroy]

IMO synopsis is usefull. But we can discuss about merging index and documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.30%. Comparing base (00f0f8c) to head (225a03f).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #65246      +/-   ##
==========================================
- Coverage   90.31%   90.30%   -0.02%     
==========================================
  Files         760      760              
  Lines      248637   248637              
  Branches    46942    46934       -8     
==========================================
- Hits       224556   224523      -33     
- Misses      15475    15515      +40     
+ Partials     8606     8599       -7     

see 28 files with indirect coverage changes

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[avivkeller]

@MikeMcC399 I linked the wrong PR, the correct one was #59216

@AugustinMauroy @MikeMcC399 to quote myself in that PR:

• The Usage section is essentially a less detailed version of what's already covered in cli.md#synopsis.
• The Example section closely mirrors the content in the official guide on getting started with Node.js.

[AugustinMauroy]

got your idea. But IMO there are several people who just read the docs and not ressource aside or only have access to docs like in strange enterprise policy. So having small getting started on docs maybe a good thing.

So what about in documentation/index having a link to run you first node => cli page, and cli page have example of console.log() and have a link to console api