This PR fixes a couple of issues for TS solution setup:
1. Expo library should generate with correct `package.json` file (e.g.
`exports` maps either to source or dist). See [spec
file](https://github.com/nrwl/nx/pull/29891/files#diff-ae2eb3d10d58786c17aa21f5603043b68043faaebafaec77912f3d69ac0c5295).
2. Nest library should generate `package.json` when non-buildable. See
[spec
file](https://github.com/nrwl/nx/pull/29891/files#diff-368467bcd2215def98ef14aaff9dcb056a915b0a724d0eb857f3a0badef8b40a).
**Notes:**
- Also removed an unsupported `standaloneConfig` option from
`@nx/nest:lib` generator. This was removed a long time ago in other
generators.
- Expo lib generator isn't crystalized when using Rollup for build. This
is a separate issue and we'll handle it in another task.
## Current Behavior
- Non-buildable Expo libs generate without `exports`
- Buildable Expo libs fail to generate due to error
- Non-buildable Nest libs do not generate `package.json`
## Expected Behavior
Expo and Nest libs generate correct `package.json` files depending on
whether they are build or non-buildable.
## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->
Fixes #
8bd0bcdd97