Bump leaflet from 1.7.1 to 1.8.0

Bumps [leaflet](https://github.com/Leaflet/Leaflet) from 1.7.1 to 1.8.0.
- [Release notes](https://github.com/Leaflet/Leaflet/releases)
- [Changelog](https://github.com/Leaflet/Leaflet/blob/main/CHANGELOG.md)
- [Commits](Leaflet/Leaflet@v1.7.1...v1.8.0)

---
updated-dependencies:
- dependency-name: leaflet
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -10,7 +10,7 @@
     "@material-ui/styles": "^4.11.5",
     "d3-color": "^3.1.0",
     "emoji-flags": "^1.3.0",
-    "leaflet": "^1.7.1",
+    "leaflet": "^1.8.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-leaflet": "^3.2.5"