Update Tenzir Platform documentation

Author: tenzir-bot

src/content/docs/changelog/platform/next.mdx

@@ -12,6 +12,12 @@ We made the Explorer table more compact, allowing you to see more rows within th
 
 By [@gitryder](https://github.com/gitryder).
 
+#### Navbar Styling Improvements
+
+We refreshed the navbar with subtle visual updates, including rounded edges and other minor styling adjustments for a cleaner look.
+
+By [@gitryder](https://github.com/gitryder).
+
 ### Bug Fixes
 
 #### Editor Text Visibility Fixes