Use OnceExit to ensure hashing is done after other plugins

[koddsson]

The PostCSS docs are pretty minimal, but I think this will fix an issue I was having where PostCSS would do hashing on un-minified CSS files, and then it would minify, causing hash mismatches in my project.

https://postcss.org/api/#plugin-onceexit

[keithamus]

@dacodekid would you be able to give @koddsson commit access to this repo? @koddsson is a colleague of mine and we’re both working on this package now.

[dacodekid]

@keithamus .. just sent a Collaborator invitation to @koddsson. If you would prefer, I don't mind change this repo's ownership to yourself as well. Plz let me know.

[keithamus]

Might be easier so I can administer it easier, but I don't want to steal the credit for the great work you did! Up to you 😜

[dacodekid]

Not at all. Haven't done anything like it before. Let me search it through and will start the process immediately.

[dacodekid]

When I tried, getting this error. Not sure what to do here :(

[keithamus]

That'll be my fork. I've just deleted it so it should be good to go now!

[dacodekid]

@keithamus transfer request has been sent. Should I do this for npm as well ?