chore: update dependencies and improve chart tooltip styling

- Updated package versions in package.json:
  - "@next/mdx" from "^16.1.3" to "^16.1.6"
  - "framer-motion" from "^12.26.2" to "^12.34.0"
  - "lucide-react" from "^0.562.0" to "^0.564.0"
  - "next" from "16.1.3" to "16.1.6"
  - "react" from "19.2.3" to "19.2.4"
  - "react-day-picker" from "^9.13.0" to "^9.13.2"
  - "react-dom" from "19.2.3" to "19.2.4"
  - "react-resizable-panels" from "^4.4.1" to "^4.6.3"
  - "shadcn" from "^3.7.0" to "^3.8.4"
  - "zod" from "^4.3.5" to "^4.3.6"
  - "@biomejs/biome" from "2.3.11" to "2.3.15"
  - "@types/node" from "^25.0.9" to "^25.2.3"

- Refactored ChartTooltipContent component in chart.tsx:
  - Simplified className construction for better readability and consistency.

src/components/ui/chart.tsx

@@ -172,10 +172,7 @@ function ChartTooltipContent({
 
   return (
     <div
-      className={cn(
-        "border-border/50 bg-background gap-1.5 rounded-lg border px-2.5 py-1.5 text-xs shadow-xl grid min-w-[8rem] items-start",
-        className
-      )}
+      className={cn("border-border/50 bg-background gap-1.5 rounded-lg border px-2.5 py-1.5 text-xs shadow-xl grid min-w-32 items-start", className)}
     >
       {!nestLabel ? tooltipLabel : null}
       <div className="grid gap-1.5">