feat: visual redesign and removal of obsolete content

package.json

@@ -8,12 +8,12 @@
     "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/react": "^3.6.0",
-    "@astrojs/starlight": "^0.25.3",
-    "@interledger/docs-design-system": "^0.5.1",
+    "@astrojs/react": "^3.6.2",
+    "@astrojs/starlight": "^0.26.1",
+    "@interledger/docs-design-system": "^0.5.2",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
-    "astro": "4.12.2",
+    "astro": "4.14.2",
     "astro-i18next": "^1.0.0-beta.21",
     "prettier": "^3.3.3",
     "prism-react-renderer": "^2.3.1",
@@ -22,7 +22,7 @@
     "react-minimal-pie-chart": "^8.4.0",
     "remark-mermaidjs": "^6.0.0",
     "respec": "^35.1.1",
-    "sharp": "^0.33.4",
-    "starlight-links-validator": "^0.9.1"
+    "sharp": "^0.33.5",
+    "starlight-links-validator": "^0.10.1"
   }
 }