Update Spanish (es) translations with enhanced clarity and accessibility

[Roeschstudio]

Summary

This PR improves the existing Spanish translations by making them more natural, accessible, and consistent while maintaining universal comprehension across all Spanish-speaking regions.

Changes Made

• ✅ Enhanced clarity and naturalness of technical terms
• ✅ Improved user-friendly language for better accessibility
• ✅ Ensured consistency across all translation files
• ✅ Made complex technical concepts more understandable
• ✅ Updated all main translation files in the es/ folder

Files Updated

• Settings and preferences (settings.json)
• Chat interface (chat.json)
• Model configuration (config.json)
• Local server options (server.json)
• Model management (models.json)
• System actions and states (actions.json)
• Main navigation (navigation.json)

Translation Approach

• Used clear, accessible Spanish suitable for all Spanish-speaking users
• Maintained technical accuracy while improving readability
• Applied consistent terminology throughout all files
• Focused on user experience and comprehension
• Simplified complex technical jargon without losing precision

Quality Assurance

• Reviewed all translations for consistency and accuracy
• Verified technical terms maintain their precise meaning
• Ensured natural language flow while keeping universal appeal
• Cross-checked terminology across all files for consistency

[github-actions]

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[Roeschstudio]

I have read the CLA Document and I hereby sign the CLA