Update engine path

src/thinksqure_engine.py

@@ -1,10 +1,11 @@
+from pathlib import Path
 from typing import Optional
 import chess
 import chess.engine
 
 
 class ThinkSquareEngine:
-    _ENGINE = "ThinkSquare/bin/stockfish"
+    _ENGINE = str(Path("bin/stockfish").resolve())
 
     @staticmethod
     def get_best_move(fen: Optional[str] = None, time_limit=0.1):