Update Spanish steward guidelines for p5.js 2.0 (remove Grunt referen…

[marioguzzzman]

Resolves #8228

Changes

This PR updates the Spanish steward guidelines to align with p5.js 2.0, removing obsolete references to Grunt, the task automation system used in p5.js 1.x, and replaces them with information about current version 2.0 tools:

• npm scripts
• ESLint
• Vitest

Bilingual Educational Approach

I am proposing a bilingual educational approach to translation by including English technical terms in parentheses the first time they appear (e.g., "verificación de estilo (linting)", "pruebas unitarias (unit tests)", "scripts de compilación (build scripts)"). My thinking is that this strategy is important to build a shared technical vocabulary that helps both Spanish-speaking and English-speaking readers so that we/they can:

1. Participate in international discussions about p5.js
2. Navigate technical documentation in both languages
3. Understand common technical terms in software development
4. English speakers can also relate to how terms are expressed in other languages

I think this makes the documentation useful as both a learning resource and a reference.

Translation Decisions

• Used educational parentheticals consistently for technical terms throughout the Grunt-removing update

Original issue: #7871

PR Checklist

• npm run lint passes - (N/A- Documentation-only PR, no code changes)
• [Inline reference] is included / updated - (Updating steward guidelines, not API reference)
• [Unit tests] are included / updated - ( N/A - Documentation update, no code changes)

Note: This is a documentation-only PR updating Spanish translation. No code changes require linting or testing.

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Thank You!

[marioguzzzman]

cc: @perminder-17 @ksen0

[ksen0]

Thanks so much @marioguzzzman , just checked this ✔️