Handles adding a root `tsconfig.base.json` when there is a root
`tsconfig.json` with no `compilerOptions` property.
Prerequisites:
Have a repository has a root `tsconfig.json` with no `compilerOptions`
property and there is no root `tsconfig.base.json`.
Steps to reproduce:
1. Generate a js library (`nx g @nx/js:lib my-lib`)
Expected results:
Library is created.
Actual results:
There is an error.
```
NX Cannot read properties of undefined (reading 'rootDir')
```
This PR fixes the error.
a1ba0ad700