rP4d88095f2a53

Fix PHP 8.1 "strlen(null)" exception which blocks rendering the Projects page (and log alien values)

Summary:
`strlen()` was used in Phabricator to check if a generic value is a non-empty string.
This behavior is deprecated since PHP 8.1. Phorge adopts `phutil_nonempty_string()` as
a general replacement.

In this specific case we use `phutil_nonempty_stringlike()` since we are not sure
if the variable `href` should be just a string or other objects.

In order not to leave these cases to chance, we have…