fix(bundles): Use ESM tslib build for the browser bundles

[absidue]

tslib is weird. The esbuild version that YouTube.js uses, isn't able to automatically pick the correct tslib build to bundle into the browser bundles, so it uses the commonjs one, which isn't treeshakable. This makes it pick the correct one, reducing the size of the bundles:

Bundle	Before	After
browser.js	893.3kb	875.8kb
browser.min.js	479.6kb	471.7kb

More recent versions of esbuild added support for tslib's weirdness, however they now aggressively preserve comments while bundling (previously they only preserved webpack's magic comments), so that tools like vite can add magic comments without esbuild stripping them. Unfortunately that means that it blows up the sizes of the node.cjs and browser.js bundles, because newer esbuild versions keep all of the jsdoc comments 😔. The browser.min.js bundle isn't affected by that, as part of the mimification process is striping comments.
Doesn't look like there is a sensible way to disable that behaviour.

[LuanRT]

Very strange behavior indeed. Thanks for the PR.