Thumbnail

[looju]

Is your feature request related to a problem? Please describe.
Currently, the expo-video-player doesn;t support thumbnails and it makes it difficult to recognize a video until it is played.

Describe the solution you'd like
A property that allows for rendering thumbnails

Describe alternatives you've considered
i have considered superimposing images over the video until it is played but it doesn't feel natural

Additional context
Add any other context or screenshots about the feature request here.