fix: convert git_monitor to proper package and fix absolute imports for PyInstaller compatibility

git_monitor/file_watcher.py

@@ -2,8 +2,8 @@ import time
 import os
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler
-from logger import logger
-from git_manager import git_manager
+from git_monitor.logger import logger
+from git_monitor.git_manager import git_manager
 
 class RepositoryWatcher:
     def __init__(self, path):