Update Dockerfile

Dockerfile

@@ -63,7 +63,7 @@ RUN printf '%s\n' '#!/usr/bin/env bash' 'exec node /moltbot/dist/entry.js "$@"'
 COPY src ./src
 
 # The wrapper listens on this port.
-ENV MOLTBOT_PUBLIC_PORT=8080
-ENV PORT=8080
-EXPOSE 8080
+ENV MOLTBOT_PUBLIC_PORT=7860
+ENV PORT=7860
+EXPOSE 7860
 CMD ["node", "src/server.js"]