Add git to build file

- this fixes the download of react-image-lightbox and react-pig

frontend/Dockerfile.dev

@@ -2,7 +2,7 @@ FROM node:13-slim
 
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
-
+RUN apt-get update && apt-get install git -y
 EXPOSE 3000
 COPY entrypoint.sh /entrypoint.sh
 CMD ["/entrypoint.sh"]