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/views/settings/hostings/_invite_code_settings.html.erb

@@ -2,7 +2,7 @@
   <div class="flex items-center justify-between">
     <div class="space-y-1">
       <p class="text-sm"><%= t(".title") %></p>
-      <p class="text-secondary text-sm"><%= t(".description") %></p>
+      <p class="text-secondary text-sm"><%= t(".description", product: product_name) %></p>
     </div>
 
     <%= styled_form_with model: Setting.new,