reduce bundle size

[richex-cn]

I noticed the import of the whole package json:

https://github.com/SergioCrisostomo/v-click-outside-x/blob/master/src/v-click-outside-x.js#L1

This adds an extra 4187 bytes to the bundle and makes no sense:

https://github.com/SergioCrisostomo/v-click-outside-x/blob/master/dist/v-click-outside-x.js#L159

The following is the comparison of bundle size before and after modification:

filename	before (bytes)	after (bytes)	reduce ratio
v-click-outside-x.esm.js	7,637	7,618	99.8%
v-click-outside-x.js	17,504	13,573	77.5%
v-click-outside-x.min.js	7,780	4,253	54.7%

The size of min.js has been reduced by half. Although ESM doesn't see much change here, But it will increases the size of projects that reference the library.