React 18 requires explicit definition for FC children

[ntippie]

Describe the bug
A typescript issue arises when using the library with React 18 and using the FormContext element with children. FormContext uses React.FC, which was changed in React 18 to require explicit definition of children. Will submit PR shortly.

https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html#updates-to-typescript-definitions

To Reproduce
Steps to reproduce the behavior:

1. Use React 18, Typescript, and react-hook-form-jsonschema
2. Attempt any example that uses FormControl element with children
3. See error about unable to pass children to FormControl

Expected behavior
Pass children elements to FormControl element as in examples

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.