Fixed style on unsubscribe page

Removed unnecassary logic

Added missing 'the'

Fix case

Fixed specs

app/views/sent_notifications/unsubscribe.html.haml

 - noteable = @sent_notification.noteable
-- noteable_type = @sent_notification.noteable_type.humanize(capitalize: false)
+- noteable_type = @sent_notification.noteable_type.titleize.downcase
 - noteable_text = %(#{noteable.title} (#{noteable.to_reference}))
-
-- page_title "Unsubscribe", noteable_text, @sent_notification.noteable_type.humanize.pluralize, @sent_notification.project.name_with_namespace
-
+- page_title "Unsubscribe", noteable_text, noteable_type.pluralize, @sent_notification.project.name_with_namespace
 
 %h3.page-title
-  Unsubscribe from #{noteable_type} #{noteable_text}
+  Unsubscribe from #{noteable_type}
 
 %p
   = succeed '?' do
-    Are you sure you want to unsubscribe from #{noteable_type}
+    Are you sure you want to unsubscribe from the #{noteable_type}:
     = link_to noteable_text, url_for([@sent_notification.project.namespace.becomes(Namespace), @sent_notification.project, noteable])
 
 %p

changelogs/unreleased/issue-23254.yml

+---
+title: Fixed style on unsubscribe page
+merge_request: 
+author: Gustav Ernberg

spec/features/unsubscribe_links_spec.rb

@@ -24,8 +24,8 @@ describe 'Unsubscribe links', feature: true do
         visit body_link
 
         expect(current_path).to eq unsubscribe_sent_notification_path(SentNotification.last)
-        expect(page).to have_text(%(Unsubscribe from issue #{issue.title} (#{issue.to_reference})))
-        expect(page).to have_text(%(Are you sure you want to unsubscribe from issue #{issue.title} (#{issue.to_reference})?))
+        expect(page).to have_text(%(Unsubscribe from issue))
+        expect(page).to have_text(%(Are you sure you want to unsubscribe from the issue: #{issue.title} (#{issue.to_reference})?))
         expect(issue.subscribed?(recipient, project)).to be_truthy
 
         click_link 'Unsubscribe'