Clarify 2FA QR scanning instructions

app/views/profiles/two_factor_auths/show.html.haml

@@ -26,7 +26,7 @@
       - else
         %p
           - help_link_start = '<a href="%{url}" target="_blank">' % { url: help_page_path('user/profile/account/two_factor_authentication') }
-          - register_2fa_token = _('Install a soft token authenticator like %{free_otp_link} or Google Authenticator from your application repository and scan this QR code. More information is available in the %{help_link_start}documentation%{help_link_end}.') % { free_otp_link:'<a href="https://freeotp.github.io/">FreeOTP</a>', help_link_start:help_link_start, help_link_end:'</a>' }
+          - register_2fa_token = _('Install a soft token authenticator like %{free_otp_link} or Google Authenticator from your application repository and use that app to scan this QR code. More information is available in the %{help_link_start}documentation%{help_link_end}.') % { free_otp_link:'<a href="https://freeotp.github.io/">FreeOTP</a>', help_link_start:help_link_start, help_link_end:'</a>' }
           = register_2fa_token.html_safe
         .row.append-bottom-10
           .col-md-4

locale/gitlab.pot

@@ -9580,7 +9580,7 @@ msgstr ""
 msgid "Install Runner on Kubernetes"
 msgstr ""
 
-msgid "Install a soft token authenticator like %{free_otp_link} or Google Authenticator from your application repository and scan this QR code. More information is available in the %{help_link_start}documentation%{help_link_end}."
+msgid "Install a soft token authenticator like %{free_otp_link} or Google Authenticator from your application repository and use that app to scan this QR code. More information is available in the %{help_link_start}documentation%{help_link_end}."
 msgstr ""
 
 msgid "Install on clusters"