[frontend]: Prevent user from deselecting all filters in a group

frontend/package-lock.json

@@ -23,6 +23,7 @@
         "react-leaflet": "^5.0.0",
         "react-leaflet-markercluster": "^5.0.0-rc.0",
         "react-router-dom": "^7.3.0",
+        "react-toastify": "^11.0.5",
         "recharts": "^2.15.1",
         "tailwindcss": "^4.0.9"
       },
@@ -4459,6 +4460,19 @@
         "react-dom": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
+    "node_modules/react-toastify": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/react-toastify/-/react-toastify-11.0.5.tgz",
+      "integrity": "sha512-EpqHBGvnSTtHYhCPLxML05NLY2ZX0JURbAdNYa6BUkk+amz4wbKBQvoKQAB0ardvSarUBuY4Q4s1sluAzZwkmA==",
+      "license": "MIT",
+      "dependencies": {
+        "clsx": "^2.1.1"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19",
+        "react-dom": "^18 || ^19"
+      }
+    },
     "node_modules/react-transition-group": {
       "version": "4.4.5",
       "resolved": "https://registry.npmjs.org/react-transition-group/-/react-transition-group-4.4.5.tgz",