Dynamic branding

[danimesq]

Show logo/background/style accourding to the .bit domain.

[danimesq]

@mkg20001, plans to introduce it? Then I'll move my Snifferdog's issues right now.

[mkg20001]

I don't know if we should instead split the Zule frontend and backend
I will have to think (You can move Snifferdog repo here. Just go to Settings -> Transfer Ownership)