chore:switch to poetry as build tool and package manager

fastanime/cli/interfaces/__init__.py

@@ -1,6 +1,4 @@
-from .stream_interface import stream_interface
-from .info_interface import info_interface
-from .binge_interface import binge_interface
-from .download_interface import download_interface
-from .quit import bye
-from .watchlist_interface import watchlist_interface
+def bye():
+    import sys
+
+    sys.exit()