Feature: Add catalan (Catalonia) language (#672)

Co-authored-by: Pranav Raj S <pranavrajs@gmail.com>

config/initializers/languages.rb

@@ -15,5 +15,6 @@ LANGUAGES_CONFIG = {
   10 => { name: 'Russian', iso_639_3_code: 'rus', iso_639_1_code: 'ru' },
   11 => { name: 'Chinese', iso_639_3_code: 'zho', iso_639_1_code: 'zh' },
   12 => { name: 'Spanish', iso_639_3_code: 'spa', iso_639_1_code: 'es' },
-  13 => { name: 'Malayalam', iso_639_3_code: 'mal', iso_639_1_code: 'ml' }
+  13 => { name: 'Malayalam', iso_639_3_code: 'mal', iso_639_1_code: 'ml' },
+  14 => { name: 'Catalan', iso_639_3_code: 'cat', iso_639_1_code: 'ca' }
 }.freeze

config/locales/ca.yml

@@ -0,0 +1,56 @@
+# Files in the config/locales directory are used for internationalization
+# and are automatically loaded by Rails. If you want to use locales other
+# than English, add the necessary files in this directory.
+#
+# To use the locales, use `I18n.t`:
+#
+#     I18n.t 'hello'
+#
+# In views, this is aliased to just `t`:
+#
+#     <%= t('hello') %>
+#
+# To use a different locale, set it with `I18n.locale`:
+#
+#     I18n.locale = :es
+#
+# This would use the information in config/locales/es.yml.
+#
+# The following keys must be escaped otherwise they will not be retrieved by
+# the default I18n backend:
+#
+# true, false, on, off, yes, no
+#
+# Instead, surround them with single quotes.
+#
+# en:
+#   'true': 'foo'
+#
+# To learn more, please read the Rails Internationalization guide
+# available at https://guides.rubyonrails.org/i18n.html.
+
+ca:
+  hello: "Hola món"
+  messages:
+    reset_password_success: Woot! S\'ha restablert la contransenya amb éxit. Revisa el correu per més instruccions.
+    reset_password_failure: Uh ho! No s\'ha trovat cap compte amb aquest correu electrònic.
+
+    errors:
+    signup:
+      disposable_email: Els correus electrònics d\'un sol ús no s\'accepten
+      invalid_email: El correu electrònic no es vàlid
+      email_already_exists: "Ja t'has registrat en un compte amb %{email}"
+      failed: El registre ha fallat
+
+  conversations:
+    activity:
+      status:
+        resolved: "La conversa va ser marcada com resolta per %{user_name}"
+        open: "La conversa es va reobrir per %{user_name}"
+      assignee:
+        assigned: "Asignada a %{assignee_name} per %{user_name}"
+        removed: "%{user_name} ha tret l'assignació"
+    templates:
+      typical_reply_message_body: "%{account_name} normalment respon a les poques hores."
+      ways_to_reach_you_message_body: "Fes saber a l'equip la forma de posar-nos en contacte amb tu."
+      email_input_box_message_body: "Rep les notificacions per correu electrònic"