Language cookie should respect `SESSION_COOKIE_SECURE` value

[jeremystretch]

Deployment Type

Self-hosted

NetBox Version

v4.2.7

Python Version

3.10

Steps to Reproduce

N/A

Expected Behavior

When a cookie is set (here, for instance) indicating the user's preferred language, it should be marked as "secure" if SESSION_COOKIE_SECURE is True (the same as the session cookie).

Observed Behavior

The language cookie is always set with secure=False (the default).