Update Dockerfile

Dockerfile

@@ -1,13 +1,15 @@
+
 FROM python:3.9
 
 WORKDIR /code
 
 COPY ./requirements.txt /code/requirements.txt
 
-RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+# Install Flask along with other dependencies
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt flask
 
 COPY . .
 
 EXPOSE 7860
 
-CMD ["shiny", "run", "app.py", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["shiny", "run", "app.py", "--host", "0.0.0.0", "--port", "7860"]