bug#32628: 26; Rename `window-setup-hook'

[Drew Adams]

>> > `after-set-frame-parameters-startup-hook'
> > I'm probably OK with nearly any name that tries to suggest what this is 
> > really for.
>
> Looking at the existing hooks in startup.el:
> before-init-hook
> after-init-hook
> emacs-startup-hook
> term-setup-hook
> inhibit-startup-hooks
> window-setup-hook
> 
> maybe a better rename for window-setup-hook would be after-init-frames-hook
> or even after-frames-setup-hook

The frame settings involved are user settings; it's not about the init frame 
without user settings.

The latter name is OK: after-frames-setup-hook.