Upgrade npm packages and support newer Node/npm versions

[p2edwards]

Description

Bring npm packages up to date, resolve peerDependency problems, and support a wider range of Node/npm versions.

• Resolve peerDependency issue with reflux & react
  • Use overrides to fix reflux peerDependency resolution #4704
• Support Node versions > 16.15.0, npm > 8.5.5
  • Use Node 20, and add it to CI #5012
  • Test newer versions of Node in CI
  • Remove or reduce warning code if it's no longer needed
• Upgrade other npm packages for performance improvements and to resolve other warnings:
  • peerDependencies (mismatched ranges, particularly for TypeScript and CSS tooling)
  • Deprecations and advisories from npm audit
  • Unpause dependabot
• Upgrade to package-lock v3 (better performance)

Additional details

This is a tracking issue / general index for these related changes.
Many of the above changes are contained enough that they can be addressed and merged as individual PR's.

Related issues and prior discussions

• Related to reflux/react peerDependency problem
  • Fix build dependency error #3858
  • Freeze npm version to 8.5.5 #3851
  • Print a warning when used with Node versions other than v16.15.0 #4366
  • Redo package-lock #4526
• Related to updating npm dependencies generally
  • Update frontend dependencies #2618
  • dependencies Pull requests that update a dependency file
• Fixing Mocha in CI tests
  • Use Node 20, and add it to CI #5012, Upgrade to node 18 and latest npm version #4553, (tmp) node 18 github actions testing #4554 ✔️ fixed IPv4 resolve problem in Node 17+
  • 'No inspectable targets' error in npm-test (GitHub CI) #4337, (tmp) github actions testing #4354, Faster frontend builds #4323 ✔️ fixed chrome connection timeout interval in CI
• Previous Node installation / pinning methods in Dockerfile
  • Prevent Node.js 18 provided by Debian 12 from taking precedence over the Node.js 16 package provided by NodeSource #4498
  • Replace curl | bash with nodesource Debian package #4644