Change the signature of options.requestAnimationFrame

[arocheleau]

The type signature of options.requestAnimationFrame has been change to reflect the guide and to make it easier to use according to #3160.

[coveralls]

Coverage remained the same at 99.622% when pulling 17adf0bfe6e2f6bb8c86dd2286063067dd8f7e1d on arocheleau:change-options-requestanimationframe-signature into c52de5cc8e44b7897792032a26fbd9536f6b028a on preactjs:master.