Use the same colors that `arc-green` imports from:
* Chroma from /web_src/less/themes/chroma/dark.less
* CodeMirror from /web_src/less/codemirror/dark.less
In line with the code blog and other dev sites (Wiki, DevTalk)
Everything is pretty much copied from the one in blender.org (_navbar_developer.php),
with some additions to make it work in Gitea.
The styling additions are in the <style> block with the comment "/* Custom styling for Gitea */"
The link to "Projects" is projects.blender.org (since it makes sense here but
not yet in the Code blog).
On the Gitea side, two custom templates have changed:
* head_navbar.tpml was changed to add the mobile navbar expand toggle.
* body_inner_pre.tpml contains the actual navbar, copied from the blender.org repo
with the following changes:
* Added <style> block custom for Gitea.
* Added custom notifications code from head_navbar.tpml
* Added user buttons (notif, create, register, sign in, etc),
See the area around "{{/* Here starts the custom styling for gitea. */}}"
* In order to style the buttons as such, the class `navbardev-btn` was added
to the Register, Sign In, Notifications, Create, and User dropdown buttons.
