* Wait for animation frame before initial rendering of post list
Improves startup experience.
(you can see yourself how big a difference is between booting to an empty channel and to a 'busy' channel, and since rendering post list is a heavy task, this change makes the initial UI appear sooner. In my testing it is about 0.7 seconds)
* eslint
* actually render empty screen when loading posts
* delay channel drawer actions after drawer is fully closed
* lazy render FlatList
* eslint
* eslint