Update photo updates banner

src/admin/AdminNavClient.tsx

@@ -97,7 +97,7 @@ export default function AdminNavClient({
             <InfoBlock centered={false} padding="tight" color="blue">
               <div className="flex items-center gap-3">
                 <FaRegClock className="flex-shrink-0" />
-                Updates detected—they may take several minutes to show up
+                Photo updates detected—they may take several minutes to show up
                 for visitors
               </div>
             </InfoBlock>}

src/components/InfoBlock.tsx

@@ -24,7 +24,7 @@ export default function InfoBlock({
     case 'blue': return [
       'text-main',
       'bg-blue-50/50 border-blue-200',
-      'dark:bg-blue-950/30 dark:border-blue-700/45',
+      'dark:bg-blue-950/30 dark:border-blue-600/50',
     ];
     }
   };