Add Formbricks configuration to environment files and update package dependencies

- Introduced new environment variables for Formbricks in .env.backup and .env.example.
- Updated package.json and yarn.lock to include React and related types for improved functionality.
- Added new favicon images and manifest for better branding and user experience.
- Implemented new Svelte components for enhanced content management, including Badge, Card, OrganisationsBlock, and OpnFormBlock.
- Updated ContentRows component to support new block types.

public/favicons/manifest.json

@@ -0,0 +1,46 @@
+{
+  "name": "Windwiderstand",
+  "short_name": "Windwiderstand",
+  "start_url": "/",
+  "display": "browser",
+  "background_color": "#ffffff",
+  "theme_color": "#ffffff",
+  "icons": [
+    {
+      "src": "/favicons/android-icon-36x36.png",
+      "sizes": "36x36",
+      "type": "image/png",
+      "density": "0.75"
+    },
+    {
+      "src": "/favicons/android-icon-48x48.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "density": "1.0"
+    },
+    {
+      "src": "/favicons/android-icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "density": "1.5"
+    },
+    {
+      "src": "/favicons/android-icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "density": "2.0"
+    },
+    {
+      "src": "/favicons/android-icon-144x144.png",
+      "sizes": "144x144",
+      "type": "image/png",
+      "density": "3.0"
+    },
+    {
+      "src": "/favicons/android-icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "density": "4.0"
+    }
+  ]
+}