docs: fix typo in chart component import path

Fixes shadcn-ui#7465 - corrected import path from "@/components/ui/charts" to "@/components/ui/chart" in the documentation example

Author: harshith-eth

apps/www/content/docs/components/chart.mdx

@@ -31,7 +31,7 @@ We designed the `chart` component with composition in mind. **You build your cha
 ```tsx showLineNumbers /ChartContainer/ /ChartTooltipContent/
 import { Bar, BarChart } from "recharts"
 
-import { ChartContainer, ChartTooltipContent } from "@/components/ui/charts"
+import { ChartContainer, ChartTooltipContent } from "@/components/ui/chart"
 
 export function MyChart() {
   return (