Co-authored-by: Poco <[email protected]>
Co-authored-by: Juhyeok Kang <[email protected]>

…error (#1409)

🚧 This PR could make a huge difference, so please help us make sure this
change gets a very thorough review. 🚧

```tsx
const Throw = {
  Error: ({ message, after = 0, children }: PropsWithChildren<{ message: string; after?: number }>) => {
    const [isNeedThrow, setIsNeedThrow] = useState(after === 0)
    if (isNeedThrow) {
      throw new Error(message)
    }
    useTimeout(() => setIsNeedThrow(true), after)
    return <>{children}</>
  }
}

const Example = () => (
  <ErrorBoundary fallback={() => <>This is expected</>}>
    <ErrorBoundary
      fallback={() => (
        <Throw.Error message={ERROR_MESSAGE} after={100}>
          ErrorBoundary's fallback before error
        </Throw.Error>
      )}
    >
      <Throw.Error message={ERROR_MESSAGE} after={100}>
        ErrorBoundary's children before error
      </Throw.Error>
    </ErrorBoundary>
  </ErrorBoundary>
)
```

## Problem: ErrorBoundary's fallback can't be treated by parent
ErrorBoundary

<!--
    A clear and concise description of what this pr is about.
 -->
 
Thrown Error in fallback will be caught by ErrorBoundary self and then
expose fallback recursively 🥲
1. ErrorBoundary's children before error
2. ErrorBoundary's fallback before error
3. ErrorBoundary's fallback before error
4. ErrorBoundary's fallback before error
5. ... expose fallback self recursively ... 

## Solution: When we meet thrown error in fallback of ErrorBoundary wrap
it as InternalFallbackError, re-throw
InternalFallbackError.fallbackError, if it is InternalFallbackError

Thrown Error in fallback will be caught by parent ErrorBoundary 👍
1. ErrorBoundary's children before error
2. ErrorBoundary's fallback before error
3. This is expected 

## PR Checklist

- [x] I did below actions if need

1. I read the [Contributing
Guide](https://github.com/toss/suspensive/blob/main/CONTRIBUTING.md)
5. I added documents and tests.

---------

Co-authored-by: Lee HyunJae (whale) <[email protected]>
Co-authored-by: lucas0530 <[email protected]>
Co-authored-by: HYUNGU KANG <[email protected]>
Co-authored-by: Brian Vaughn <[email protected]>