(not urgent) Change 'locate yourself' into 'where am I?'

[plocket]

Issue Overview

'Where am I?' seems more clear to me and sticks closer to plain language guidelines.

Warning

CSS for @media (max-width: 640px) .mapboxgl-ctrl-top-right .mapboxgl-ctrl.mapboxgl-ctrl-group may have to change its transform: translateX(287%); value to stay centered. #21.

[eloisejones]

I'm working on this one as part of set: #29 #32 #28 .

[nihonjinrxs]

Looking to wait for some user research to confirm this change is needed.