build: add Vue and Pinia to the browser build and unit tests

package.json

@@ -66,9 +66,14 @@
     "mapillary-js": "^4.1.2",
     "mgrs": "^2.1.0",
     "pbf": "^5.1.2",
-    "satellite.js": "^6.0.2"
+    "pinia": "^2.3.1",
+    "satellite.js": "^6.0.2",
+    "vue": "^3.5.44"
   },
   "devDependencies": {
+    "@vitejs/plugin-vue": "^5.2.4",
+    "@vue/test-utils": "^2.5.1",
+    "happy-dom": "^20.14.6",
     "prettier": "3.9.6",
     "puppeteer": "^25.16.0",
     "sharp": "^0.35.4",