chore(types): reuse built-in Iterator type

[jh-leong]

• replace custom Iterable and Iterator interfaces with built-in types

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	90 kB	34.5 kB	31.1 kB
vue.global.prod.js	147 kB	54 kB	48.1 kB

Usages

Name	Size	Gzip	Brotli
createApp	49.8 kB	19.5 kB	17.8 kB
createSSRApp	53.3 kB	21 kB	19.1 kB
defineCustomElement	52 kB	20.3 kB	18.5 kB
overall	63.3 kB	24.5 kB	22.3 kB