[Enhancement] Noscript notice header above environment notice header

[venteto]

It would be nice to have a separate header identical to the environment notice header, but above it, to let a user know when JavaScript is disabled (as some admin features seem to depend on JS).

So if JavaScript is disabled, the new noscript header would just push the environment header down, and both would be sticky, if this is selected in settings.

Disclosure: I have never tried this package with anything like Grappelli, but hopefully the additional header would not interfere with other packages such as that.