[Feature]: config.rootUrl should return localhost in lith dev

[Ladas552]

Issues

• I have checked existing issues and there no existing ones with the same request.

Feature description

Right now {{ config.rootUrl }} in templates returns the string of the site, it makes sense, but if used in something like a navbar, during lith dev I just end up on the production site, instead of the development localhost site, by accident.

A qol feature that turns {{ config.rootUrl }} into something similar to {{ post.permalink }} which redirects to the location inside the dev environment, instead of production site.

Help

No

Implementation help

No response