Pass type parameter to SyntheticEvent

[yukiyokotani]

Describe the issue/change

Currently the type of event that SourceInfo has is SyntheticEvent with no type argument. In the implementation, I believe that it is the input element that fires the event, so SyntheticEvent<HTMLInputElement> should be more appropriate here. This change will improve integration with other libraries such as MUI in terms of TypeScript types.

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Describe the changes proposed/implemented in this PR

https://github.com/s-yadav/react-number-format/blob/master/src/types.ts#L23
befor: SyntheticEvent
after: SyntheticEvent<HTMLInputElement>

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Please check which browsers were used for testing

• Chrome
• Chrome (Android)
• Safari (OSX)
• Safari (iOS)
• Firefox
• Firefox (Android)

[s-yadav]

Make sense. Thanks for the PR.