Feature Policy update: battery, webauthn, publickey-credentials, xr-spatial-tracking, and vr (#5193)
Feature Policy update: battery, webauthn, publickey-credentials, xr-spatial-tracking, and vr (#5193)

* Feature-Policy: battery directive

* Feature-Policy: webauthn -> publickey-credentials

* Feature Policy xr-spatial-tracking replaces vr

* Review comment

chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data