docs: update documentation content and structure

[2023478]

Summary

This PR improves documentation quality by refining content clarity, structure, and consistency across the updated pages. The goal is to make onboarding and feature discovery easier for users while keeping terminology and formatting aligned with project standards.

What Changed

• Updated documentation text for clearer explanations and better readability.
• Improved page structure and section flow in affected docs.
• Standardized wording/terminology and markdown formatting.
• Synced related localized docs where applicable.

Why

• Reduce ambiguity in user-facing docs.
• Keep documentation consistent across pages/locales.
• Improve maintainability for future doc updates.

Scope

• Documentation changes only.
• No code logic, API behavior, or runtime configuration changes.

Validation

• Verified markdown formatting and internal consistency.
• Confirmed links/section references in updated pages.

Checklist

• Documentation-only changes
• No breaking changes
• No security impact
• Content reviewed for clarity and consistency