Enable skipLibCheck in rover

[cnasc]

Description

TypeORM seems to have some issues with the latest TS release. The workaround is trivial, however, so there's no reason to hold up the TS upgrade just for rover.

The fix is to set "skipLibCheck": true in tsconfig. This makes it so that tsc won't typecheck absolutely every declaration in imported libraries, just the ones that touch our code. Since the error occurs in a type definition that we don't (and won't) use, the problem is neatly resolved.

Issues

Refs #4640
typeorm/typeorm#3194

Checklist:

• 1 PR, 1 purpose: my Pull Request applies to a single purpose
  • This PR only contains configuration changes (package.json, etc.)
  • This PR only contains code changes (if configuration changes are required, do a separate PR first, then re-base)
• My code follows the style guidelines of this project, including naming conventions
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• If my code adds or changes components, I have written corresponding stories with Storybook
• I have performed a self-review of my own code
• If my code involves visual changes, I am adding applicable screenshots to this thread

[akeem]

👍 thank you!