Update Dockerfile

Dockerfile

@@ -18,7 +18,7 @@ ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
 # Set the working directory to the user's home directory
-WORKDIR $HOME/alist
+WORKDIR $HOME/${app}
 RUN mkdir -p $HOME/${app}/data  
 COPY config.json $HOME/${app}/data/config.json