ref: handle definition request

[Vavarine]

PR Description: Improve Block Definition Navigation with JSONC Parser

Overview

This PR enhances the "Go to Definition" functionality for VTEX IO blocks by refactoring the handleDefinitionRequest function to use the JSONC parser. The implementation now properly identifies block references in JSON/JSONC files and provides accurate navigation to their definitions.

Key Improvements

• Replaced manual string parsing with proper JSONC token scanning
• Added helper functions for better code organization and readability
• Improved error handling with early returns and better error logging
• Fixed issues with string token detection and position calculation
• Removed debug console logs that were cluttering the output

Technical Details

The implementation now:

1. Properly identifies string tokens in JSON/JSONC files
2. Distinguishes between property names and values
3. Accurately calculates positions for highlighting
4. Provides better error handling and logging

Testing

The changes have been tested with various JSON files containing block references, including:

• Block references in property values
• Block references in arrays
• Nested block structures
• Files with JSONC comments

All tests confirm that the "Go to Definition" functionality works correctly, taking users to the appropriate block definition when clicking on a block reference.

Related Issues

Fixes the issue where hovering over a block reference would not highlight the entire block ID.

[IncognitaDev]

Suggested change

	console.log('blockId', blockId);
	console.log('range', range);