fix: Twitter Card use `name` instead `property`

[ncaq]

Twitter’s parser will fall back to using property and content, so there is no need to modify existing Open Graph protocol markup if it already exists.

Getting started with Cards | Docs | Twitter Developer Platform

It may be usable for now since it is fallback, but it is better to output the correct one just in case.

[Minoru]

Makes sense, thank you!