The main things I'm seeing right now are:
1. Some selectors are broken up into multiple selectors, especially when
there are pseudo classes involved where the output is unknown. For
example `::ng-deep, ::v-deep {}` will be split into `::ng-deep {},
::v-deep {}`
2. It looks like a lot of selectors were dropped, however after looking
at them in more detail I noticed that they were _duplicated_ before.
This means that now the output will be smaller in these cases!
a14f6bcf6d