Improve project structure

Dockerfile

@@ -1,9 +1,9 @@
 FROM ubuntu:22.10
-RUN mkdir /app
+RUN mkdir -p /app/mirrortea/
 WORKDIR /app
 RUN apt-get update --yes
 RUN apt-get install --yes python3 python3-pip
-COPY requirements.txt /app
+COPY requirements.txt /app/
 RUN pip3 install -r requirements.txt
-COPY mirrortea /app
-ENTRYPOINT ["/app/mirrortea"]
+COPY mirrortea/* /app/mirrortea/
+ENTRYPOINT ["/usr/bin/python3", "/app/mirrortea"]

mirrortea/__main__.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import asyncio
 import os
 import sys