[polyfill] limitations/caveats

[mayank99]

• client script doesn't watch for changes to stylesheets
• nesting declarative and imperative shadow roots does not work perfectly, because the DSD transform is only executed once (way before the client script runs)
• implicit @scope may cause issues (see [polyfill] how to handle implicitly @scoped light DOM styles? #4)

[bkardell]

Feels like this should be (at least currently) in the readme

[mayank99]

good point! i've linked this issue in the readme 096d1d1