## Issue
The loading circle wasn't showing up, causing confusion.
Splitting CSS doesn't seem trivial as there seems to be a huge dependency on the load order. Pretty much similar to what this person is facing https://lihautan.com/css-code-splitting/#the-problem
## Change
This reverts videojs-specific changes from 4d638bcf.
- FileRenderInitiator: we don't display if it's not Audio or Video ("playables"). But only do that if it's free or was purchased, otherwise there's no button to buy it.
- FileRenderInline: if the user have not purchased it, don't show anything (not even the spinner).
## Issue
Closes 5811: Video-embed in markdown-post is broken
- Revert "Fix 'makeSelectIsPlaying' to look at 'playing' instead of 'primary'." dabdc980a1.
- Revert "Fix 'isPlaying' to reflect 'playing' instead of 'primary' URI" 351890decf.
Reverting means "Deleting MD from downloads list causes spinning icon to run forever 4959" gets re-opened, but this is a way less severe issue to leave in.
* am I done?
* post diff
* unused selector cleanup
* missed commit
* mess with button styles
* fix flow
Co-authored-by: Jeremy Kauffman <jeremy@lbry.io>
Co-authored-by: Sean Yesmunt <sean@lbry.io>