Translate country

[MintL]

Adds the possibility to request a localised version of countries.
Changed in match mail, profile, and some minor places but
there are probably more places to change. However, if no locale
is selected it will still default to swedish so there should be
no breaking changes.

[jongotlin]

Thanks for your submission! However, I would prefer to use Symfony's own translation package.

I suggest you to put all countries in a xliff file located at app/Resources/translations/countries.sv.xliff.

<trans-unit id="SE">
    <source>SE</source>
    <target>Sverige</target>
</trans-unit>

In a view file you can then translate the country with {{ user.from|trans({}, 'countries') }}.

The method getCountryName should probably not be used at all.

When using the translator in a form type you have to inject the service translator into the class. See how it is done in MatchFilterType.