5.1.20

Release note of 5.1.20:

a3cab3a refs #39676, correct exists csp rule to add support for reCaptcha
f32d0f4 Refs #39835, Fixed breadcrumbs links of uf field form.
f410f9e e8975ed refs #39632, gh-111, translate the interface
fc66ee7 refs #30318 note-100, only show verified from email address for select