Update migrate profile text in locales

[llunaCreixent]

We need to add a link to the page. Probably not useful before login, so just in the text of the dashboard.

[mikozet]

for news item content would look like this:

<span class="info-text">
  <p>Circles Garden profile data is being migrated. You can read about this 
    <a href="https://bit.ly/3W1il2M" target="_blank" rel="noopener noreferrer">here</a>.
  </p>
  <p>Please visit <a href="https://circles.garden/profile-migrate" rel="noopener noreferrer">Migrate Your Profile</a> from the menu to confirm your preference.</p>
</span>

[mikozet]

it is deployed on stagging currently

[llunaCreixent]

Cool! LGTM!
I've updated the news in prod