import css (ampproject#19947)

🐛 Fix FixedLayer attribute sync for amp-bind (ampproject#19805)

* Fix FixedLayer attribute sync for amp-bind

* Review comments

Replace test server port from 31862 to 8081 for better proxy support …

…in SauceLabs (ampproject#19832)

* Replace test server port from 31862 to 8081 for better proxy support in SauceLabs

* Restore batch size of 4 for SauceLabs

Exclude facebook for iframe sandbox (ampproject#19828)

* Exclude facebook for iframe sandbox

* only apply to ads

* ad -> amp-ad

* typo

* excluding `facebook` and `embedly` and adding `allow-presentation`

* lint

* remove allow-presentation

* lint

Fix paywall display conditions (ampproject#19733)

🐛 Amp subscriptions reset fixes. (ampproject#19689)

* Reset  platform UX when resetting platforms, don't double initialize local platform.

Skip failing test (ampproject#19645)

* skip bind test

* add todo

* skip more test

🏗 Properly annotate <amp-video> as MEDIA (ampproject#19406)

🐛 amp-subscriptions platform reset all platforms on reauthorise (ampp…

…roject#19384)

* Clear all platforms on reAuthorise

* fix test

Always set theme color to background color ✅ (ampproject#19391)

* Added theme-color based on accent color for ampstory

* Added theme-color based on accent color for ampstory

* Updated JSDoc for method

* fixed lint errors and test errors

* fixed suggestions from code review

* use computed style helper instead of getComputedStyle

* fixed tests, implemented code review suggestions