Display QR code when sharing invite link

Fixes: #2495
Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org>

package.json

@@ -48,6 +48,7 @@
     "@sentry/react": "^8.0.0",
     "@sentry/tracing": "^7.0.0",
     "@types/lodash": "^4.14.199",
+    "@types/qrcode": "^1.5.5",
     "@use-gesture/react": "^10.2.11",
     "@vector-im/compound-design-tokens": "^1.0.0",
     "@vector-im/compound-web": "^6.0.0",
@@ -68,6 +69,7 @@
     "pako": "^2.0.4",
     "postcss-preset-env": "^10.0.0",
     "posthog-js": "^1.29.0",
+    "qrcode": "^1.5.4",
     "react": "18",
     "react-dom": "18",
     "react-i18next": "^15.0.0",