Update frontend components for accessibility and functionality improvements

- Modified docker-compose.dev.yml to conditionally run npm install based on the presence of package-lock.json.
- Upgraded Nuxt version in package-lock.json from 3.21.1 to 4.3.1 for enhanced features.
- Enhanced ConfirmModal component with aria-modal attribute for better accessibility.
- Updated MapErrorBoundary component's error message for clarity.
- Added role and aria-label attributes to MapView and MapSearch components for improved screen reader support.
- Refactored various components to manage focus behavior on modal close, enhancing user experience.
- Improved ToastContainer styling for better responsiveness and visibility.
- Updated layout components to include skip navigation links for improved accessibility.

frontend-nuxt/lib/Marker.ts

@@ -106,6 +106,8 @@ export function createMarker(
         const position = mapview.map.unproject([marker.position.x, marker.position.y], HnHMaxZoom)
         leafletMarker = L.marker(position, { icon, title: marker.name })
         leafletMarker.addTo(mapview.markerLayer)
+        const markerEl = (leafletMarker as unknown as { getElement?: () => HTMLElement }).getElement?.()
+        if (markerEl) markerEl.setAttribute('aria-label', marker.name)
         leafletMarker.on('click', (e: L.LeafletMouseEvent) => {
           if (onClick) onClick(e)
         })