Blob-CSI: Implement UI replacement

[blairdrummond]

(transferred from another issue)

@Collinbrown95 I'd like your input on this!

I have a basic UI running. It's just 3 html+css+js files as a configmap in an nginx container.

There are a few things we should look at:

• [x] ~Dynamically fetch the list of buckets (I hard-coded it)~ Dynamically listing buckets not possible according to https://github.com/aws/aws-sdk-js/blob/307e82673b48577fce4389e4ce03f95064e8fe0d/doc-src/templates/api-versions/model_documentor.rb#L264-L265 and https://stackoverflow.com/a/29950510
• [x] Add i18n
• [x] Download all the external assets and include them? Protected-B notebooks will not be able to fetch those external resources.

Anything else you can think of? You'll notice I made the nginx sidecar (which serves the frontend) serve the assets under /s3/. I think we could do this or something similar to make the UI work with the Kubeflow central dashboard virtual service thing, similarly to how we did it with gitea.

There is a separate issue for the central dashboard thing, but we may need to configure the services and nginx config.

[brendangadd]

Note: for applications that believe X-Forwarded-Proto: https request header as an indication that HTTPS was used and terminated somewhere, @rohank07 did this with an Istio Virtual Service for our Trino implementation.

[Collinbrown95]

Changes outlined in README in v2-alpha branch of aws js explorer fork https://github.com/StatCan/aws-js-s3-explorer/tree/v2-alpha.

Associated K8s manifests are in https://github.com/Collinbrown95/kind-blob-csi-mock-aaw/tree/%40cbrown/s3proxy-ui.