Mixed content warnings when running the web app

[adityamandaleeka]

From @danroth27

The web app is hosted on an HTTPS address, but it displays images that are retrieved over plain HTTP, which results in lots of "Mixed content" warnings in the browser dev console.

[adityamandaleeka]

@SteveSandersonMS PTAL

[SteveSandersonMS]

There are two main choices for how to solve this:

1. Continue to serve the images from the catalog service, but make it use https
2. Have the WebApp reverse-proxy the images, so the browser sees them as being served from the same origin

Option 2 is probably better as it means you don't need an HTTP ingress that allows the general public to make requests against the catalog API.

[adityamandaleeka]

@SteveSandersonMS Sounds good to me. Is this something you can handle by 11/14?

[SteveSandersonMS]

@adityamandaleeka It's done for WebApp in #74, but we need a bit more done for HybridApp and the MAUI app.