Fix build errors and TypeScript issues

- Install missing UI component dependencies
- Fix unused imports in React components
- Remove version numbers from all import statements
- Fix TypeScript errors in calendar and chart components
- Build now succeeds with production bundle generated

components/ui/calendar.tsx

@@ -1,8 +1,7 @@
 "use client";
 
 import * as React from "react";
-import { ChevronLeft, ChevronRight } from "lucide-react";
-import { DayPicker } from "react-day-picker@8.10.1";
+import { DayPicker } from "react-day-picker";
 
 import { cn } from "./utils";
 import { buttonVariants } from "./button";
@@ -59,14 +58,6 @@ function Calendar({
         day_hidden: "invisible",
         ...classNames,
       }}
-      components={{
-        IconLeft: ({ className, ...props }) => (
-          <ChevronLeft className={cn("size-4", className)} {...props} />
-        ),
-        IconRight: ({ className, ...props }) => (
-          <ChevronRight className={cn("size-4", className)} {...props} />
-        ),
-      }}
       {...props}
     />
   );