Fix TypeScript tuple array typing for GlobeMap lines

src/components/ui/GlobeMap.tsx

@@ -90,7 +90,7 @@ export const GlobeMap = ({ data }: GlobeMapProps) => {
             // Force the line to go straight across the map (the "front")
             // by interpolating multiple points. This prevents d3-geo from
             // wrapping around the dateline for long distances.
-            const coordinates = [];
+            const coordinates: [number, number][] = [];
             const steps = 30;
             for (let j = 0; j <= steps; j++) {
               const t = j / steps;