TypeScript: upgrade to `5.0`

[Alex Iglesias]

This just sets a TODO to upgrade our typescript config to use v5.0 as it was officially released yesterday.
I will wait until VS Code is updated and ships with v5.0 out of the box, as it's currently still on v4.9.5.

There are a couple things to consider in this upgrade:

• importsNotUsedAsValues and preserveValueImports are deprecated in favor of verbatimModuleSyntax.
• A new --moduleResolution bundler flag seems to fit better in our esbuild-based template.