Refactor GUI to modern HTML/CSS and improve Docker setup

Dockerfile

@@ -1,12 +1,67 @@
 FROM python:3.10.14-slim
 
-RUN apt update
-RUN apt-get install -y ffmpeg
-RUN apt install python3-pip -y
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+ENV REDDIT_BOT_GUI=true
 
-RUN mkdir /app
-ADD . /app
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg \
+    curl \
+    wget \
+    gnupg \
+    libglib2.0-0 \
+    libnss3 \
+    libnspr4 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libcups2 \
+    libdrm2 \
+    libdbus-1-3 \
+    libxcb1 \
+    libxkbcommon0 \
+    libx11-6 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxext6 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libpango-1.0-0 \
+    libcairo2 \
+    libasound2 \
+    libatspi2.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create app directory
 WORKDIR /app
-RUN pip install -r requirements.txt
 
-CMD ["python3", "main.py"]
+# Copy requirements first for better caching
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Install Playwright browsers
+RUN playwright install chromium
+RUN playwright install-deps chromium
+
+# Download spaCy language model
+RUN python -m spacy download en_core_web_sm
+
+# Copy application code
+COPY . .
+
+# Create necessary directories
+RUN mkdir -p assets/temp assets/backgrounds/video assets/backgrounds/audio results
+
+# Expose ports
+EXPOSE 5000
+
+# Set entrypoint
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["python", "main.py"]