i18n support

[seroperson]

Hello! Thank you for your plugin! I'm using it in website with several locales and it seems missing some little tweaks:

• If your page uses i18n key as a title (or description), this plugin displays it as a key, not a localized string
• og:locale expects data.lang instead of data.locale

But probably there is something else. Thank you again for your work!

[seroperson]

Temporary workaround using custom generator to substitute all title, description and lang fields:

class Builders::PostDataFixer < SiteBuilder
  def build
    # Fixing bridgetown-seo-tag i18n things
    generator do
      posts = site.collections.posts.resources
      posts.each do |post|
        post.data["lang"] = post.data["locale"]
      end
      
      pages = site.collections.pages
      pages.each do |page|
        helper = Bridgetown::RubyTemplateView::Helpers.new(page, site)
        locale = page.data["locale"]
        page.data["title"] = helper.t(page.data["title"], locale: locale)
        page.data["description"] = helper.t(page.data["description"], locale: locale)
        page.data["lang"] = locale
      end
    end
  end
end