Improve npm documentation for dependency management

[Makena-Wambui]

Enhanced the description of npm's functionality by specifying that it installs, updates, and manages dependencies. Added an explanation of dependencies, noting that they are pre-written pieces of code such as libraries and packages essential for a Node.js application to function.

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Name	Status	Preview	Updated (UTC)
nodejs-org	✅ Ready (Inspect)	Visit Preview	Oct 28, 2024 3:00pm

[aymen94]

@Makena-Wambui Congrats 😄, for you contribute.

[github-actions[bot]]

Lighthouse Results

URL	Performance	Accessibility	Best Practices	SEO	Report
/en	🟢 96	🟢 100	🟢 100	🟢 91	🔗
/en/about	🟢 100	🟢 100	🟢 100	🟢 91	🔗
/en/about/previous-releases	🟢 99	🟢 100	🟢 100	🟢 92	🔗
/en/download	🟢 100	🟢 100	🟢 100	🟢 91	🔗
/en/blog	🟢 100	🟢 100	🟢 100	🟢 92	🔗

[github-actions[bot]]

Unit Test Coverage Report

Lines	Statements	Branches	Functions
	90.54% (594/656)	76.27% (180/236)	94.35% (117/124)

Unit Test Report

Tests	Skipped	Failures	Errors	Time
134	0 :zzz:	0 :x:	0 :fire:	5.051s :stopwatch:

[mikeesto]

Thanks @Makena-Wambui . Can you run prettier to fix the formatting? Then we can merge this. Let me know if you have any problems

[Makena-Wambui]

@mikeesto I ran Prettier, and it confirmed that no changes were needed.

[bmuenzenmeyer]

this isn't your fault at all, there was a bug in our scripting - i resolved within https://github.com/nodejs/nodejs.org/commit/3d144f74e57067f3a966cc8794634130c8e61eae

@Makena-Wambui i tried pushing to your fork but could not. you can replicate the fix, sync/rebase, or otherwise we can troubleshoot further

[Makena-Wambui]

@bmuenzenmeyer Please check if it is okay now.

[bmuenzenmeyer]

yay - sorry this took so long @Makena-Wambui - it shouldn't be this hard (and that's on us)

[Makena-Wambui]

Yay. Thank you so much. My first contribution.