Add sourcemaps to Docker builds

Author: shockey

Dockerfile

@@ -10,6 +10,7 @@ COPY nginx.conf /etc/nginx/
 # copy swagger files to the `/js` folder
 COPY ./index.html /usr/share/nginx/html/
 ADD ./dist/*.js /usr/share/nginx/html/dist/
+ADD ./dist/*.map /usr/share/nginx/html/dist/
 ADD ./dist/*.css /usr/share/nginx/html/dist/
 ADD ./docker-run.sh /usr/share/nginx/