Bottom bar option that works again

Instead of the big floating buttons that used to be there (but the mechanism still there) do a normal bottom, non-floating
toolbar when the top one is disabled, which is still the default in mobile (and i intend to leave it the default).

Couldn't do it exactly the way the floating buttons were done, due to an anchors loop, but is a default footer that gets replaced if ever the app sets a custom one (so actions would need to be managed by hand in this case)
For applications that do not use a bottom navigation tabbar it looks and works quite good