cleanup(misc): rename oss preset to npm and update presets related docs

[leosvelperez]

What it does

• Rename oss preset to npm.
• Update related docs to use the new name and to ensure they match our current presets (README.md, docs).

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[nx-cloud]

Nx Cloud Report

CI ran the following commands for commit 00d26cc. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

Status	Command
	nx affected --target=e2e --base=a3b22aae5031ed335b830f2694f5f955dd23682d
	nx affected --target=lint --base=a3b22aae5031ed335b830f2694f5f955dd23682d --parallel --max-parallel=4
	nx affected --target=test --base=a3b22aae5031ed335b830f2694f5f955dd23682d --parallel --max-parallel=2
	nx affected --target=build --base=a3b22aae5031ed335b830f2694f5f955dd23682d --parallel --max-parallel=3
	nx build typedoc-theme

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[github-actions]

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