feat: update default view to map and adjust map zoom/projection

components/dashboard/Countries.tsx

@@ -13,7 +13,7 @@ interface LocationProps {
 type Tab = 'map' | 'countries' | 'cities'
 
 export default function Locations({ countries, cities }: LocationProps) {
-  const [activeTab, setActiveTab] = useState<Tab>('countries')
+  const [activeTab, setActiveTab] = useState<Tab>('map')
 
   const getFlagComponent = (countryCode: string) => {
     if (!countryCode || countryCode === 'Unknown') return null

components/dashboard/WorldMap.tsx

@@ -45,11 +45,13 @@ const WorldMap = ({ data }: WorldMapProps) => {
   
   return (
     <div className="relative w-full h-[300px] bg-neutral-50 dark:bg-neutral-900/50 rounded-lg overflow-hidden border border-neutral-100 dark:border-neutral-800">
-      <ComposableMap projectionConfig={{ rotate: [-10, 0, 0], scale: 147 }}>
-        <ZoomableGroup>
+      <ComposableMap projectionConfig={{ rotate: [-10, 0, 0], scale: 160, center: [0, 15] }}>
+        <ZoomableGroup maxZoom={1}>
           <Geographies geography={geoUrl}>
             {({ geographies }) =>
-              geographies.map((geo) => {
+              geographies
+                .filter(geo => geo.id !== "010") // Remove Antarctica
+                .map((geo) => {
                   // Ensure ID is padded to 3 digits as standard ISO numeric
                   const id = String(geo.id).padStart(3, '0')
                   const count = processedData.map.get(id) || 0