Feature: Updated the frank dockerfile to properly install python poetry

Feature: Updated the frank playbook to allow user to be changed from pi
Chore: Refactored the various env files to use single file and multiple var files.

docker/app/frank.Dockerfile

@@ -1,7 +1,7 @@
 FROM python:latest
 
 # Install Poetry
-RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/opt/poetry python - && \
     cd /usr/local/bin && \
     ln -s /opt/poetry/bin/poetry && \
     poetry config virtualenvs.create false && \