Bug 27479: Improve link text to be more helpful (opac-password-recovery.tt)

Bug 27479: Improve link text to be more helpful (opac-password-recovery.tt)

Test plan:
1. Follow the steps above to reproduce, and notice how the link says
"Click here to login"
2. Apply patch
3. Follow the steps above to reproduce again, but now notice how the
link says "Log in to your account"

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>