…aging (#45405)

Speeds up the dev-turnaround by only bundling types when packaging. Currently
bundling occurs for all the `ng_module` targets in devmode.

This has various positive benefits:

* Avoidance of this rather slower operation in development
* Makes APF-built packages also handle types for `ts_library` targets consistently.
* Allows us to ensure APF entry-points have `d.ts` _always_ bundled (working with ESM
module resolution in TypeScript -- currently experimental)
* Allows us to remove the secondary `package.json` files from APF (maybe APF v14? - seems
low-impact). This would clean-up the APF even more and fix resolution issues (like in Vite)

PR Close #45405