chore: replace appdirs with platformdirs

dooit/api/_vars.py

@@ -1,5 +1,5 @@
 from pathlib import Path
-from appdirs import user_data_dir
+from platformdirs import user_data_dir
 
 # ROOT_FOLDER = Path(__file__).parent.parent.parent.absolute()  # local db file for testing
 

dooit/ui/api/plug.py

@@ -2,7 +2,7 @@
 from collections import defaultdict
 from pathlib import Path
 from typing import Callable
-from appdirs import user_config_dir
+from platformdirs import user_config_dir
 from .loader import load_dir, load_file
 
 MAIN_FOLDER = "dooit_v3"