Fix css, oci label and update npm packages

Author: paulbouwer

Dockerfile

@@ -1,12 +1,12 @@
-FROM node:8.1.0-alpine
+FROM node:13.6.0-alpine
 
 ARG IMAGE_CREATE_DATE
 ARG IMAGE_VERSION
 ARG IMAGE_SOURCE_REVISION
 
 # Metadata as defined in OCI image spec annotations - https://github.com/opencontainers/image-spec/blob/master/annotations.md
 LABEL org.opencontainers.image.title="Hello Kubernetes!" \
-      org.opencontainers.image.description="Provides a demo image to deploy to a Kubernetes cluster. It displays a message, the name of the pod and details of the node it's deployed to." \
+      org.opencontainers.image.description="Provides a demo image to deploy to a Kubernetes cluster. It displays a message, the name of the pod and details of the node it is deployed to." \
       org.opencontainers.image.created=$IMAGE_CREATE_DATE \
       org.opencontainers.image.version=$IMAGE_VERSION \
       org.opencontainers.image.authors="Paul Bouwer" \
@@ -28,4 +28,5 @@ RUN npm install
 # Bundle app source
 COPY . /usr/src/app
 
+USER node
 CMD [ "npm", "start" ]