App Passwords: Ensure description paragraphs aren't hidden on the Authorize Application screen

[TimothyBlynJacobs]

On mobile devices, there is a css rule that seems to hide all paragraphs in the form. This causes the information about where the user is redirected to after approving the app to be hidden which poses a security issue.

@media screen and (max-width: 782px)
list-tables.css:1726.form-wrap > p {
display: none;
}

Trac ticket: https://core.trac.wordpress.org/ticket/51970

[TimothyBlynJacobs]

In 49772:

App Passwords: Ensure redirection description is shown on mobile devices.

Props #core.
Fixes #51970.

[helen]

In 49773:

App Passwords: Ensure redirection description is shown on mobile devices.

Props TimothyBlynJacobs.
Fixes #51970.
Merges [49772] to the 5.6 branch.