fix: upgrade react-router-dom from 6.18.0 to 6.19.0

Snyk has created this PR to upgrade react-router-dom from 6.18.0 to 6.19.0.

See this package in npm:
https://www.npmjs.com/package/react-router-dom

See this project in Snyk:
https://app.snyk.io/org/qdraw/project/4885c835-1cac-4a15-bd27-a17cd26960bf?utm_source=github&utm_medium=referral&page=upgrade-pr

starsky/starsky/clientapp/package.json

@@ -26,7 +26,7 @@
     "leaflet": "^1.9.4",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
-    "react-router-dom": "^6.18.0"
+    "react-router-dom": "^6.19.0"
   },
   "devDependencies": {
     "@storybook/addon-essentials": "^7.5.3",