fix: stabilize Toolbox navigation layout

packages/shell-react/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@add-ideas/toolbox-shell-react",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "A lightweight React application shell for toolbox-compatible browser applications.",
   "license": "Apache-2.0",
   "repository": {
@@ -38,7 +38,7 @@
     "react-dom": ">=18 <20"
   },
   "dependencies": {
-    "@add-ideas/toolbox-contract": "0.2.0"
+    "@add-ideas/toolbox-contract": "0.2.1"
   },
   "scripts": {
     "build": "tsc -p tsconfig.build.json && node -e \"const fs=require('node:fs');fs.copyFileSync('src/styles.css','dist/styles.css');fs.copyFileSync('../../LICENSE','LICENSE')\"",