Update Dockerfile

Dockerfile

@@ -1,10 +1,22 @@
 FROM python:3.11-slim
 
 WORKDIR /app
-
-RUN pip install --no-cache-dir flask
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
 
 COPY app.py .
+COPY static/ static/
 
 EXPOSE 7860
-CMD ["python", "app.py"]
+CMD ["python", "app.py"]
+```
+
+---
+
+Your file structure should be:
+```
+├── Dockerfile
+├── requirements.txt
+├── app.py
+└── static/
+    └── index.html