fix : replaced pickle with json and added context managers in Word-Building data.py

[tmdeveloper007]

Summary of What Has Been Done

Replaced all pickle operations with json in games/Word-Building/data.py and added proper context managers for all file operations. Also wrapped the module-level file reading in a helper function with error handling.

Changes Made

• games/Word-Building/data.py:
  • Replaced import pickle with import json
  • Created _load_words() helper function with try/except and context managers
  • Created _save_words() helper function with context managers
  • Refactored DataAdding() to use the helper functions
  • Changed file extension from .bat to .json for the data file
  • Module-level code now uses the _load_words() helper instead of bare pickle.load()

Impact it Made

Improved security (no pickle deserialization vulnerabilities), proper resource cleanup via context managers, and safe module imports even if the data file is corrupted or missing.

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