feat: rebrand app to Haver with Hebrew meaning in About section

src/components/CalendarView.tsx

@@ -50,7 +50,7 @@ export default function CalendarView({ prayers, onDayClick }: CalendarViewProps)
         {/* Header */}
         <div className="text-center mb-8">
           <h1 className="text-4xl font-bold text-slate-900 dark:text-white mb-2">
-            Prayer Journal
+            Haver
           </h1>
           <p className="text-slate-600 dark:text-slate-400">
             Click on days with entries to view them