Display temperature °C/°F related to the used metar

[dino99]

By default gnome-weather use 'KNYC' metar and so display °F temperature.

If switching the custom setting to set a different metar, then validate the choice made, user can expect to get °C displayed when selecting a °C metar zone, or at least a possibility to display the local format, either directly from the panel, or via dconf settings. But sadly nothing exist.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-weather 3.26.0-4
ProcVersionSignature: Ubuntu 4.15.0-9.10-generic 4.15.2
Uname: Linux 4.15.0-9-generic x86_64
ApportVersion: 2.20.8-0ubuntu9
Architecture: amd64
CurrentDesktop: GNOME
Date: Tue Feb 13 12:25:20 2018
EcryptfsInUse: Yes
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-weather
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

https://bugzilla.gnome.org/show_bug.cgi?id=793420