upgrade react 19, remove preact usage

src/components/ui/calendar.tsx

@@ -57,14 +57,18 @@ function Calendar({
         day_hidden: "invisible",
         ...classNames,
       }}
-      components={{
-        IconLeft: ({ className, ...props }) => (
+      components={
+        {
+          /*
+        IconLeft: ({ className, ...props }: any) => (
           <ChevronLeft className={cn("h-4 w-4", className)} {...props} />
         ),
-        IconRight: ({ className, ...props }) => (
+        IconRight: ({ className, ...props }: any) => (
           <ChevronRight className={cn("h-4 w-4", className)} {...props} />
         ),
-      }}
+        */
+        }
+      }
       {...props}
     />
   );