add version and build info to the settings page

Dockerfile

@@ -8,6 +8,12 @@ ENV PHOTOVIEW_API_ENDPOINT=${PHOTOVIEW_API_ENDPOINT}
 ARG UI_PUBLIC_URL
 ENV UI_PUBLIC_URL=${UI_PUBLIC_URL:-/}
 
+ARG VERSION
+ENV VERSION=${VERSION:-undefined}
+
+ARG BUILD_DATE
+ENV BUILD_DATE=${BUILD_DATE:-undefined}
+
 RUN mkdir -p /app
 WORKDIR /app