New syntax error diagnosis system

Added

• New Modular Parsing System: Began the implementation of a new, more robust parsing system. This version introduces the core modules for tokenization, validation, and error fixing.
• Real-time Syntax Validation: The new parser provides real-time syntax validation, highlighting errors as you type.
• Quick Fixes for Syntax Errors: Implemented quick fixes for a wide range of common syntax errors, allowing for rapid correction of issues directly in the editor.

Changed

• Error Highlighting and Correction: Replaced the old error detection and correction system with the new modular parsing engine. This provides more accurate and detailed error information and more reliable fixes.

Removed

• Old Error Correction System: The previous, less-efficient error correction logic has been completely removed in favor of the new modular system.