Enhancement: Update Core UI to 1.0.6

[bambamboole]

I just compared the swapped out the sass files and updated yarn.lock.

Can't see any major changes or broken things in the backend so this should just work.

I saved the logo in resources and removed the image in public.
We should avoid to commit any resources that can be build with laravel mix.

btw: this resolves #975

[rappasoft]

There seems to be other things in here not directly related to coreui, like removing pace and global overrides? You need to explain why so I have something to link to when people ask.

[bambamboole]

@rappasoft
I tried to use pace-progress in favor of pace, because with pace-progress there would be an npm package. But there is an issue with it (click me) .

So I built it back but changed the require parameter because there doesn't have to be the whole path to node_modules. the package name is enough.
The reason for a new yarn.lock was the yarn update command.