Add leaflet to mapper

mapper/package.json

@@ -8,6 +8,7 @@
     "@testing-library/user-event": "^12.1.10",
     "axios": "^0.21.1",
     "leaflet": "^1.9.4",
+    "leaflet-draw": "^1.0.4",
     "leaflet-polylinedecorator": "^1.6.0",
     "moment": "^2.29.1",
     "moment-timezone": "^0.5.34",
@@ -16,6 +17,7 @@
     "react-dom": "^17.0.2",
     "react-is": "^17.0.2",
     "react-leaflet": "^4.2.1",
+    "react-leaflet-draw": "^0.20.6",
     "react-range-slider-input": "^3.0.7",
     "react-scripts": "4.0.3",
     "web-vitals": "^1.0.1"