In React ErrorBoundary, fallback function should not have nullable error type

[twavv]

sentry-javascript/packages/react/src/errorboundary.tsx

Line 8 in 48ad138

error: Error | null;

As far as I can tell, there's no reason for this to be Error | null instead of just Error. The only time the fallback function is invoked is inside an if (error) { ... } branch.

[lobsterkatie]

Good catch, thanks!