feat: replace theme with rapide

package.json

@@ -15,13 +15,13 @@
     "@astrojs/mdx": "^4.3.13",
     "@astrojs/node": "^9.5.2",
     "@astrojs/starlight": "^0.37.6",
-    "@catppuccin/starlight": "^1.1.1",
     "@tailwindcss/postcss": "^4.1.18",
     "@tailwindcss/vite": "^4.1.18",
     "astro": "^5.17.1",
     "motion": "^12.33.0",
     "sanitize-html": "^2.17.0",
     "sharp": "^0.34.5",
+    "starlight-theme-rapide": "^0.5.2",
     "tailwindcss": "^4.1.18"
   },
   "devDependencies": {