Set UK as default home country and update footer text

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: jdamcd

src/App.tsx

@@ -295,7 +295,7 @@ function App() {
       {/* Footer */}
       <footer className="bg-white dark:bg-gray-800 border-t border-gray-200 dark:border-gray-700 px-4 py-3 mt-auto">
         <div className="max-w-7xl mx-auto text-center text-xs md:text-sm text-gray-500 dark:text-gray-400">
-          All data is processed locally in your browser. Use import / export to back up your trip history. <a href="https://github.com/jdamcd/trip-map" target="_blank" rel="noopener noreferrer" className="hover:text-gray-700 dark:hover:text-gray-300 underline">Source code on GitHub</a>.
+          All data is processed locally in your browser. Use import & export to back up your trip history. <a href="https://github.com/jdamcd/trip-map" target="_blank" rel="noopener noreferrer" className="hover:text-gray-700 dark:hover:text-gray-300 underline">Source code on GitHub</a>.
         </div>
       </footer>
     </div>

src/lib/storage.ts

@@ -37,7 +37,7 @@ export function saveHomeCountry(countryCode: string): void {
 }
 
 export function loadHomeCountry(): string {
-  return localStorage.getItem(HOME_COUNTRY_KEY) || '';
+  return localStorage.getItem(HOME_COUNTRY_KEY) || 'GB';
 }
 
 export function exportToJson(visits: CountryVisit[]): string {