[Feature Request] Show correct codename in images for multiple watches

[eLtMosen]

Tunny is always shown as skipjack
Wren as Sparrow
Ray as firefish
Carp as Smelt

It would be cool to see the real codename in the About page and used as hostname/bt name.
Maybe even the catfish and sawfish variants could be named correctly.

This would help users ensure they flashed the correct image and generally avoid questions in the matter.

[dodoradio]

slightly relevant, but IMO worth mentioning: some watches have slight differences that don't obviously break the user experience but should be tweaked.

• on carp, the flat tyre is a different size to smelt. This means that the display is marginally off center, in a way that isn't noticeable, but should be fixed by setting a separate machine

and two future, currently unencountered issues:

• on bowfin (moto 360 sport) GPS exists, which it doesn't on carp or smelt. it may cause weird errors when the gps module fails to come online on those watches, when we do eventually add support for bowfin.
• on koi (casio wsd-f10) there is no gps module, on ayu (wsd-f20) there is a gps. same potential for weirdness when gps doesn't come online as on bowfin