Switch to using tailwind.css build and subsequently switch to docker file

Dockerfile

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+# Stage 1: Node.js for TailwindCSS build
+FROM node:16-alpine as tailwind-builder
+
+# Set working directory for Tailwind build
+WORKDIR /app
+
+# Copy only the necessary files for TailwindCSS build
+COPY package.json package-lock.json ./
+COPY ./app/templates ./app/templates
+COPY tailwind.config.js ./
+COPY ./app/static/css/tailwind.css ./app/static/css/tailwind.css
+
+# Install Node.js dependencies
+RUN npm install
+
+# Build TailwindCSS assets
+RUN npm run build
+
+# Stage 2: Python for Flask app
+FROM python:3.9-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    libpq-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory for Flask app
+WORKDIR /app
+
+# Copy only necessary application files
+COPY requirements.txt ./
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application files
+COPY . .
+
+# Copy the built TailwindCSS assets from the first stage
+COPY --from=tailwind-builder /app/app/static/css/tailwind.css ./app/static/css/tailwind.css
+
+# Expose the port Flask will run on
+EXPOSE 5000
+
+# Command to run the Flask app
+CMD ["gunicorn", "-b", "0.0.0.0:5000", "app:create_app()"]