Localize abbreviations when localizing labels

[1ec5]

As of #9582, MGLStyle.localizesLabels localizes occurrences of {name} and {name_*} in Mapbox Streets–sourced layers, but it ignores {abbr}, which is English-only. When the locale is something other than English, these layers should be set to {name} or {name_*} just like any other layer.

/cc @fabian-guerra @friedbunny

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[1ec5]

This issue is most jarring when localizing Mapbox-designed styles into a non-Latin writing system, such as into Arabic, Chinese, or Russian.

/cc @jmkiley