Externalize strings of Two-Factor Authentication page in user profile

locale/gitlab.pot

@@ -1165,6 +1165,9 @@ msgstr ""
 msgid "Are you sure? This will invalidate your registered applications and U2F devices."
 msgstr ""
+msgid "Are you sure? This will invalidate your registered applications and U2F devices."
+msgstr ""
+
 msgid "Artifacts"
 msgstr ""
@@ -8178,6 +8181,12 @@ msgstr ""
 msgid "Register with two-factor app"
 msgstr ""
+msgid "Register with two-factor app"
+msgstr ""
+
+msgid "Registered On"
+msgstr ""
+
 msgid "Registry"
 msgstr ""
@@ -11631,6 +11640,9 @@ msgstr ""
 msgid "You do not have permission to leave this %{namespaceType}."
 msgstr ""
+msgid "You don't have any U2F devices registered yet."
+msgstr ""
+
 msgid "You don't have any active chat names."
 msgstr ""