Extended options for repeated events

[sahil-shubham]

About this PR

Tinykeys doesn't have any support for repeated events, which happen when an user holds a shortcut, a simple solution to this is to check event.repeat before doing what you want to do for a shortcut. But doing this is repetitive as there can be multiple tinykeys instances in a big production app.

I have added a allowRepeat in KeyBindingHandlerOptions, this change wouldn't cause any problems to current users as it defaults to true. But can be made false if needed.

How has this been tested?

• Built and linked package locally

[sahil-shubham]

Open to discussing this PR, we have kept allowRepeat as false by default at our organization, Workduck.

Also running npm install led to some changes in the lockfile.

[jamiebuilds]

I don't generally like adding options for things that are fairly straight forward in user code.

tinykeys(window, {
	"A": event => {
    if (event.repeat) return
		// ...
  }
})

I have considered a "middleware" API that allows you to share logic like:

tinykeys(window, {
	"A": event => {
    if (event.repeat) return
		// ...
  }
}, {
  middleware: [
		(event, next) => {
			if (!event.repeat) next()
    }
	]
})

Which would be implemented something like:

let index = 0
function next() {
	let fn = middlewares[index++]
	if (fn) {
		fn(event, next)
	} else {
		cb(event)
	}
}
next()