Make branding configurable (#173)

* Remove orphan function

* Add centralized branding helpers and update locales

* Remove _plus and add (proper) brand

* No longer Sure, configurable

* Consistency with compose file naming

* Missed `product_name` mapping

* Fix brand/product name in mailers

* Product name in email reset flow

* Fix i18n errors/tests

* Fix password mailer brand/product name (again)

* Missed hardcoded `Sure` in onboarding goals

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: Juan José Mata <jjmata@jjmata.com>

* PR nitpick on documentation

* Missing interpolation key for invited UI

* Orphan assets

* New logos

---------

Signed-off-by: Juan José Mata <jjmata@jjmata.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

app/models/demo/generator.rb

@@ -146,10 +146,6 @@ class Demo::Generator
       raise ActiveRecord::RecordNotFound, "No admin user with email #{email} found in family ##{family.id}"
     end
 
-    def partner_email_for(email)
-      "partner_#{email}"
-    end
-
     def create_family_and_users!(family_name, email, onboarded:, subscribed:)
       family = Family.create!(
         name: family_name,

app/models/provider/simplefin.rb

@@ -1,7 +1,7 @@
 class Provider::Simplefin
   include HTTParty
 
-  headers "User-Agent" => "Sure Finance SimpleFin Client"
+  headers "User-Agent" => "#{Rails.configuration.x.product_name} Finance SimpleFin Client"
   default_options.merge!(verify: true, ssl_verify_mode: :peer)
 
   def initialize