refactor: subdividing a type of grid event handler

[ ] It's submitted to right branch according to our branching model
[ ] It's right issue type on title
[ ] When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
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[ ] Tests for the changes have been added (for bug fixes/features)
[ ] Docs have been added/updated (for bug fixes/features)
[ ] It does not introduce a breaking change or has description for the breaking change

Parameter types of event handlers have been subdivided by event name. Can see at the editor level what data to handle in the event handler.

Extract types from GridEventProps

AS-IS

TO-BE

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nhn / tui.grid