Add user and set up environment variables

Dockerfile

@@ -1,5 +1,16 @@
 FROM python:3.11
+# Set up a new user named "user" with user ID 1000
+RUN useradd -m -u 1000 user
 
+# Switch to the "user" user
+USER user
+
+# Set home to the user's home directory
+ENV HOME=/home/user \
+	PATH=/home/user/.local/bin:$PATH
+
+# Set the working directory to the user's home directory
+WORKDIR $HOME/code
 WORKDIR /code
 
 COPY ./requirements.txt /code/requirements.txt