Maintenance fixes

[gary-archer]

Some updates after finding a couple of test issues with the latest Node.js, Curity schema etc.

ARM64 on macOS

I hadn't tested before on this platform.
I had some strange out of space errors until I did docker system prune -a.

OAuth

• Chapter 10 bash token request with JWT workload identity failed due to client_id parameter

Node.js

• Examples were supposed to use Node.js 22 so that they run on the last 2 versions
• Some Docker containers used Node.js 20 so I updated them to 22
• When 24 is the default Node.js version there was an npm run build error for the API in chapter 5
• I made the usual type of Node.js dependency updates to fix security warnings

Developer Appeal

Use the latest versions of these, partly to fix vulnerabilities and partly to look modern / up to date:

• Open Policy Agent
• cert-manager / SPIRE / Istio
• React / Electron

SPA / Desktop App

Recently I did some playing around with bundlers so I made some DX / CSP improvements:

• Use webpack to clean the dist folder and write development bundles so that you can see the output
• Use the CopyWebPack plugin to support updates to HTML / CSS / config.json in watch mode
• Add bootstrap.min.css to the project so that the CSP only references the web / BFF domains

[ju-cu]

In