Externalize strings from `/app/views/sent_notifications`

app/views/sent_notifications/unsubscribe.html.haml

 - noteable = @sent_notification.noteable
 - noteable_type = @sent_notification.noteable_type.titleize.downcase
 - noteable_text = %(#{noteable.title} (#{noteable.to_reference}))
-- page_title "Unsubscribe", noteable_text, noteable_type.pluralize, @sent_notification.project.full_name
+- page_title _("Unsubscribe"), noteable_text, noteable_type.pluralize, @sent_notification.project.full_name
 
 %h3.page-title
-  Unsubscribe from #{noteable_type}
+  = _("Unsubscribe from %{type}") % { type: noteable_type }
 
 %p
-  = succeed '?' do
-    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])
+  - link_to_noteable_text = link_to(noteable_text, url_for([@sent_notification.project.namespace.becomes(Namespace), @sent_notification.project, noteable]))
+  = _("Are you sure you want to unsubscribe from the %{type}: %{link_to_noteable_text}?").html_safe % { type: noteable_type, link_to_noteable_text: link_to_noteable_text }
 
 %p
-  = link_to 'Unsubscribe', unsubscribe_sent_notification_path(@sent_notification, force: true),
+  = link_to _('Unsubscribe'), unsubscribe_sent_notification_path(@sent_notification, force: true),
             class: 'btn btn-primary append-right-10'
-  = link_to 'Cancel', new_user_session_path, class: 'btn append-right-10'
+  = link_to _('Cancel'), new_user_session_path, class: 'btn append-right-10'

changelogs/unreleased/gt-externalize-app-views-sent_notifications.yml

+---
+title: Externalize strings from `/app/views/sent_notifications`
+merge_request: 24576
+author: George Tsiolis
+type: other

locale/gitlab.pot

@@ -735,6 +735,9 @@ msgstr ""
 msgid "Are you sure you want to stop this environment?"
 msgstr ""
 
+msgid "Are you sure you want to unsubscribe from the %{type}: %{link_to_noteable_text}?"
+msgstr ""
+
 msgid "Are you sure?"
 msgstr ""
 
@@ -7557,6 +7560,9 @@ msgstr ""
 msgid "Unsubscribe at project level"
 msgstr ""
 
+msgid "Unsubscribe from %{type}"
+msgstr ""
+
 msgid "Unverified"
 msgstr ""