Adding Ukrainian pluralization rules

config/initializers/localization.rb

 I18n.available_locales = [:uk]
 
-I18n.default_locale = :uk
+I18n.default_locale = :uk
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+
+I18n::Backend::Simple.include(I18n::Backend::Pluralization)
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config/locales/pluralizer.uk.rb

+{
+    uk: {
+        i18n: {
+            plural: {
+                keys: [:one, :few, :many, :other],
+                rule: lambda do |n|
+                  if n % 10 == 1 && n % 100 != 11
+                    :one
+                  elsif [2, 3, 4].include?(n % 10) && ![12, 13, 14].include?(n % 100)
+                    :few
+                  elsif n % 10 == 0 || [5, 6, 7, 8, 9].include?(n % 10) || [11, 12, 13, 14].include?(n % 100)
+                    :many
+                  else
+                    :other
+                  end
+                end
+            }
+        }
+    }
+}
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