use drawio diagram embedding

Dockerfile

@@ -4,23 +4,6 @@ ADD pip-requirements.txt /tmp/pip-requirements.txt
 RUN pip install -r /tmp/pip-requirements.txt \
     && rm /tmp/pip-requirements.txt
 
-# install drawio for doc diagram gen
-ENV DRAWIO_VERSION "21.1.2"
-RUN apt update \
-    && apt install -yq --no-install-recommends \
-        xvfb \
-        wget \
-        libnotify4 \
-        libgbm1 \
-        libasound2 \
-        libxss1 \
-        libsecret-1-0 \
-    && wget https://github.com/jgraph/drawio-desktop/releases/download/v${DRAWIO_VERSION}/drawio-amd64-${DRAWIO_VERSION}.deb \
-    && apt install -y ./drawio-amd64-${DRAWIO_VERSION}.deb \
-    && rm -rf /var/lib/apt/lists/* \
-    && rm -rf drawio-amd64-${DRAWIO_VERSION}.deb
-ENV XVFB_DISPLAY ":42"
-
 FROM dev as prod
 
 # Bundle app source