Externalize strings from `/app/views/repository_check_mailer`

app/views/repository_check_mailer/notify.html.haml

@@ -2,7 +2,7 @@
   #{@message}.
 
 %p
-  = link_to "See the affected projects in the GitLab admin panel", admin_projects_url(last_repository_check_failed: 1)
+  = link_to _("See the affected projects in the GitLab admin panel"), admin_projects_url(last_repository_check_failed: 1)
 
 %p
-  You are receiving this message because you are a GitLab administrator for #{Gitlab.config.gitlab.url}.
+  = _("You are receiving this message because you are a GitLab administrator for %{url}.") % { url: Gitlab.config.gitlab.url }

app/views/repository_check_mailer/notify.text.haml

 #{@message}.
 \
-View details: #{admin_projects_url(last_repository_check_failed: 1)}
+= _("View details: %{details_url}") % { details_url: admin_projects_url(last_repository_check_failed: 1) }
 
-You are receiving this message because you are a GitLab administrator
-for #{Gitlab.config.gitlab.url}.
+= _("You are receiving this message because you are a GitLab administrator for %{url}.") % { url: Gitlab.config.gitlab.url }

locale/gitlab.pot

@@ -5608,6 +5608,9 @@ msgstr ""
 msgid "See metrics"
 msgstr ""
 
+msgid "See the affected projects in the GitLab admin panel"
+msgstr ""
+
 msgid "Select"
 msgstr ""
 
@@ -7014,6 +7017,9 @@ msgstr ""
 msgid "View deployment"
 msgstr ""
 
+msgid "View details: %{details_url}"
+msgstr ""
+
 msgid "View file @ "
 msgstr ""
 
@@ -7269,6 +7275,9 @@ msgstr ""
 msgid "You are on a read-only GitLab instance."
 msgstr ""
 
+msgid "You are receiving this message because you are a GitLab administrator for %{url}."
+msgstr ""
+
 msgid "You can %{linkStart}view the blob%{linkEnd} instead."
 msgstr ""