Backport some changes and fixes

Return the separator customization that got lost in some commit
Don't blur the nav when it's not visible
Don't scale down the article card when clicking on a tag

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://codeberg.org/daudix/duckquill/compare/v6.0.0...main)
 
+### Changed
+
+- Don't scale down article cards when clicking on tags in them.
+- Improve performance of the page when navbar is hidden by using the `config.extra.nav.auto_hide` config variable.
+- Replace `config.extra.debug_*` config variables with variables under the `config.extra.debug` section.
+
 ## [6.0.0](https://codeberg.org/daudix/duckquill/compare/v5.4.0...v6.0.0)
 
 ### Added