Added nanostore logic to centralise data

package-lock.json

@@ -9,9 +9,11 @@
       "version": "0.0.1",
       "dependencies": {
         "@astrojs/vue": "^3.0.1",
+        "@nanostores/vue": "^0.10.0",
         "@types/leaflet": "^1.9.6",
         "@vueuse/core": "^10.5.0",
         "astro": "^3.2.0",
+        "nanostores": "^0.9.3",
         "vue": "^3.3.4"
       },
       "devDependencies": {
@@ -927,6 +929,28 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@nanostores/vue": {
+      "version": "0.10.0",
+      "resolved": "https://registry.npmjs.org/@nanostores/vue/-/vue-0.10.0.tgz",
+      "integrity": "sha512-832RAUbzRfHPs1CdqVEwfvgB2+RD/INji4Zo8bUSEfRO2pQRMMeq479gydnohGpRaa0oNwlfKo7TGFXCghq/1g==",
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "peerDependencies": {
+        "@nanostores/logger": ">=0.2.3",
+        "@vue/devtools-api": ">=6.5.0",
+        "nanostores": ">=0.9.2",
+        "vue": ">=3.3.1"
+      },
+      "peerDependenciesMeta": {
+        "@nanostores/logger": {
+          "optional": true
+        },
+        "@vue/devtools-api": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -4046,6 +4070,20 @@
         "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
       }
     },
+    "node_modules/nanostores": {
+      "version": "0.9.3",
+      "resolved": "https://registry.npmjs.org/nanostores/-/nanostores-0.9.3.tgz",
+      "integrity": "sha512-KobZjcVyNndNrb5DAjfs0WG0lRcZu5Q1BOrfTOxokFLi25zFrWPjg+joXC6kuDqNfSt9fQwppyjUBkRPtsL+8w==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "engines": {
+        "node": "^16.0.0 || ^18.0.0 || >=20.0.0"
+      }
+    },
     "node_modules/napi-build-utils": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/napi-build-utils/-/napi-build-utils-1.0.2.tgz",