feat: env badge in header, inline desc edit, clean up deps

- Header now shows Production/Development with color-coded dot via import.meta.env.PROD
- LinkDashboard: click-to-edit description inline (blur/Enter to save, Escape to cancel)
- LoginPage: fix Azure button label to English
- Remove unused motion and autoprefixer dependencies

package.json

@@ -22,7 +22,6 @@
     "express": "^4.21.2",
     "jsonwebtoken": "^9.0.2",
     "lucide-react": "^0.546.0",
-    "motion": "^12.23.24",
     "react": "^19.0.1",
     "react-dom": "^19.0.1",
     "vite": "^6.2.3"
@@ -33,7 +32,6 @@
     "@types/express": "^4.17.21",
     "@types/jsonwebtoken": "^9.0.9",
     "@types/node": "^22.14.0",
-    "autoprefixer": "^10.4.21",
     "esbuild": "^0.25.0",
     "tailwindcss": "^4.1.14",
     "tsx": "^4.21.0",