* only animate NFT SVG on hover by using a canvas

* handle high dpis

* animation transition between canvas and img

* set start state to not animated

* removed animations that were causing issues on Firefox

* simplify code

* remove debugger statement

* remove useEffect in favor of an event handler

* hide canvas without unmounting to avoid blinking

* fix lint error

* fix flicker on hover by leaving canvas always visible

* add comment about z-index
Co-authored-by: Justin Domingue <domingue.justin@gmail.com>