Follow-up to #5583.
* Add separate Cyrillic/Russian keyboard
* And remove that from English
* Update French keyboard (is easy)
* Remove yahzhert, that was just a double of QWERTY
* Update Spanish keyboard
* Reduce Japanese to 4 layers and add globe
* Reduce Korean to 4 layers
* Reduce Greek to 8 layers
Extend the FR and ES keyboards from the EN one, and
just tweak what has to be changed.
This will allow them to stay in sync with the EN keyboard's
recent and futur developments of key popups.
Also make the FR keyboard a bit more AZERTY.
Provided by @gerhaher: removed some duplicated keys, replaced
them with other useful ones (to swedish and kenyan people).
Stick cyrillic letter io to a single key
French keyboard: aligned to std.lua, fixed '.' and ',' keys.
