Explicitly document that :style can also co-exist with static style.

 I observed that :style can be co-exist with static style [as well as class](https://vuejs.org/guide/essentials/class-and-style.html#:~:text=In%20addition%2C%20the%20%3Aclass%20directive%20can%20also%20co%2Dexist%20with%20the%20plain%20class%20attribute.). It would be beneficial to explicitly mention this in the documentation.