* dev: add `WEB_KIDS` innertube client
* refactor: move DASH manifest stuff out of `VideoInfo`
This makes it easier to use these functions elsewhere.
* feat(ytkids): add `Kids#getInfo()` & `Kids#search()`
* feat: add `Innertube#kids.getHomeFeed()`
* docs: add YouTube Kids API ref
* docs: fix typo
* docs: fix yet another typo
* docs: update YouTube Music API ref
Unrelated but required to reflect changes made to the DASH manifest generation functions
* chore: lint
* chore: add tests
* feat: include `captions` in `VideoInfo`
* chore: fix tests
