modify Dockerfile

+ add special instructions for @volcs0 for debugging

app/setup/files.py

@@ -5,7 +5,6 @@ create the config directory and copy the assets to the app directory.
 
 import os
 import shutil
-import sys
 from configparser import ConfigParser
 
 from app import settings
@@ -21,6 +20,7 @@ IS_BUILD = config["DEFAULT"]["BUILD"] == "True"
 if IS_BUILD:
     settings.Keys.LASTFM_API = config["DEFAULT"]["LASTFM_API_KEY"]
 
+
 class CopyFiles:
     """Copies assets to the app directory."""