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

[Juri Linkov]

>>> > `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.

Actually the prefix after- implies there is its counterpart before- like in
before-init-hook and after-init-hook.  So we don't need the prefix after-,
that leaves just frames-setup-hook.  Is it better than window-setup-hook?