Fix typo of GitLab Pages in admin UI

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

app/views/admin/dashboard/index.html.haml

@@ -101,7 +101,7 @@
             enabled: Gitlab.config.registry.enabled,
             doc_href: help_page_path('user/packages/container_registry/index'))
 
-          = feature_entry(_('Gitlab Pages'),
+          = feature_entry(_('GitLab Pages'),
             enabled: Gitlab.config.pages.enabled,
             doc_href: help_instance_configuration_url)
 

locale/gitlab.pot

@@ -14666,9 +14666,6 @@ msgstr ""
 msgid "GithubIntegration|This requires mirroring your GitHub repository to this project. %{docs_link}"
 msgstr ""
 
-msgid "Gitlab Pages"
-msgstr ""
-
 msgid "Gitpod"
 msgstr ""