General
The general settings allows you to set:
- Language to use, overriding system settings.
 - Temperature unit.
 - Import/export battery history.
 
Note that:
- importing battery history requires having a single watch connected.
 - exporting battery history will export the first connected watch (first tab).
 - migrating battery history from previously connected watch.
 
In case you have multiple watches connected, please disconnect all but one before importing/exporting history.
