Update docs

Author: lcharette

app/pages/6.0/08.pages-and-layout/04.filters-and-functions/docs.md

@@ -78,6 +78,21 @@ Preloads assets for better performance by telling the browser to fetch them earl
 
 This generates `<link rel="modulepreload">` tags for JavaScript modules and `<link rel="preload">` tags for other assets, allowing the browser to fetch them in parallel with the page load.
 
+#### vite_css_preload
+
+Emits `<link rel="preload" as="style">` hints specifically for CSS files associated with an entry point:
+
+```twig
+{{ vite_css_preload('main.ts') }}
+```
+
+This tells the browser to start fetching your stylesheets as early as possible, before the CSS `<link>` tags are processed. It's typically called just before `vite_css()` in your layout template to improve perceived load performance:
+
+```twig
+{{ vite_css_preload('main.ts') }}
+{{ vite_css('main.ts') }}
+```
+
 > [!NOTE]
 > Further information on how to use these functions and how they work under the hood will be covered in the [Assets and Vite](/assets-vite) chapter.
 

app/pages/6.0/23.upgrading/01.51-to-60/03.guide/docs.md

@@ -169,14 +169,14 @@ Replace the contents of your `package.json` to match the 6.0 structure. The chan
         "@modyfi/vite-plugin-yaml": "^1.1.1",
         "@types/uikit": "^3.14.5",
         "@vitejs/plugin-vue": "^5.0.4",
-        "@vitest/coverage-v8": "^3.1.1",
+        "@vitest/coverage-v8": "^4.1.0",
         "@vue/test-utils": "^2.4.6",
         "happy-dom": "^20.0.2",
         "less": "^4.2.0",
         "typescript": "^5.4.5",
         "vite": "^6.4.1",
         "vite-plugin-vue-devtools": "^7.5.4",
-        "vitest": "^3.1.1",
+        "vitest": "^4.1.0",
         "vue-tsc": "^2.1.10"
     },
     "scripts": {