Persistent Permissions for the File System Access API

I really like the slide-toggle for this permission in the easy to access site-settings. I wish more setting were as easy to adjust!

Frustrating that this only works for installed apps. Apps feel like such an immense downgrade to me as a user versus an experience in a web browser, where there's a url bar, tabs (which tabbed display mode somewhat improves), forward/back buttons, and all my awesome user-agency building extensions. As a user I don't want to have to install these worse experiences to have an ok time in the web. I quite loath this PWA only phase, it feels miserable for me.

Thanks for the hard work on such good web tech @tomayac.