[Feature] CSS minimising.

[BirdInFire]

Is your feature request related to a problem? Please describe.
I simply ask if I do try to make a script that minimise (remove comment and merge all css file into one (by following the load order))
if you will use it for release ?

Additional context
Using separate file with many comment like in the repo is perfect during development time, but using a script when you create a release to minimise the number of CSS file and reduce the css into a minimum of line necessary can
1 reduce the size of the chrome folder
2 speed the load of the theme and so impact less the final user.

For many user this impact is negligible but for some it may be a problem that worsen their already slow firefox at loading time.

So I ask before making it because if not used I will not lose my time.