fix: Correct dotenv loading to use dynamic directory based on execution context

src/constants.py

@@ -1,8 +1,12 @@
 import os
+import sys
 
 from dotenv import load_dotenv
 
-load_dotenv(override=True)
+extDataDir = os.getcwd()
+if getattr(sys, "frozen", False):
+    extDataDir = sys._MEIPASS
+load_dotenv(dotenv_path=os.path.join(extDataDir, ".env"))
 
 LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO").upper()
 LOG_PATH = os.getenv("LOG_PATH", "/tmp/logs/thechart")