- since all locale changes need to be entered into GS anyway, this
is something the Config object can do because it is the source
of truth for locale settings.
- drop all the GS settings from the Page.
- remove the weirdly-structured prettyStatus and similar:
the Config object has human-readable status strings (three,
for location, language, and LC-formats) which can be
normal properties with signals.
- Implement prettyStatus in the view step by querying the Config.
- the language and LC settings migrate from page to config
- add API for explicitly setting language (which is then preserved
when clicking new locations)
- since Config knows what settings there are, it should create the
jobs to run later -- not the Page.
- this doesn't work yet, because the Config does **not** know what
the selected timezone is yet.
The Config object wasn't being used at all in the locale module;
reset it to empty and start using it in locale, so that
configuration functionality can be added to it as-needed,
and with the necessary refactoring built-in.
