armenian translations initial commit (#6320)

* adding armenian translations

* updating config files for armenian translations

* armenian translation fix

* fixing spaces

app/helpers/settings_helper.rb

@@ -16,6 +16,7 @@ module SettingsHelper
     he: 'עברית',
     hr: 'Hrvatski',
     hu: 'Magyar',
+    hy: 'Հայերեն',
     id: 'Bahasa Indonesia',
     io: 'Ido',
     it: 'Italiano',

config/application.rb

@@ -46,6 +46,7 @@ module Mastodon
       :he,
       :hr,
       :hu,
+      :hy,
       :id,
       :io,
       :it,