Необходимо дополнить доку `<template>` про атрибуты: - [`shadowrootmode`](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template#shadowrootmode) - [`shadowrootclonable`](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template#shadowrootclonable) - [`shadowrootdelegatesfocus`](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template#shadowrootdelegatesfocus) - [`shadowrootserializable`](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template#shadowrootserializable)
