style(cli): change default page icon to "dot"

apps/cli/sync.ts

@@ -418,7 +418,7 @@ function warningText(h: Header): string {
 }
 
 /** Sidebar/page icon for every problem page (Lucide, resolved by Blume). */
-const PAGE_ICON = "line-dot-left-horizontal";
+const PAGE_ICON = "dot";
 
 function badgeLine(sol: Solution): string {
   return `<Badge variant="accent">${sol.category}</Badge>`;