Upgrade Angular to v19 using the update guide.
- Add `standalone: false` to any missed component in stories or tests.
- Update jest.config to follow the new best practices.
Update all libs to use explicit dependencies rather than relying on tsconfig.libs.json. This allows us to more easily understand the dependencies between libs and prevent users from accidentally adding new dependencies.
We still use tsconfig.libs (now renamed tsconfig.spec) for tests.
