Fix Incorrect Hook Import Path in Toast Component Example in ShadCN Docs (#4811)

#### Summary:
This pull request addresses a documentation error found in the ShadCN website's Toast component example. Specifically, the import route for the hook is incorrect in the example. and fixes [#4816](https://github.com/shadcn-ui/ui/issues/4816)

#### Issue:
Upon reviewing the [ShadCN Toast documentation](https://ui.shadcn.com/docs/components/toast), I found that the import path for the Toast component hook was wrongly mentioned as being located in the `components` folder. According to the `component.json` file, the correct location of the hook is within the `hooks` folder inside the main directory.

#### Fix:
- Corrected the import path in the Toast component example from `components` to `hooks`, as per the `component.json` file structure.

#### Example of Fix:
**Before:**
```js
import { useToast } from "@/components/use-toast";
```

**After:**
```js
import { useToast } from "@/hooks/use-toast";
```

#### Testing:
- Verified that the corrected path resolves correctly.
- Ensured the example works as expected after the change.

#### Impact:
This fix prevents confusion for users following the example and ensures that the import path accurately reflects the project structure, improving the overall developer experience.

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

@@ -104,7 +104,7 @@ export default function RootLayout({ children }) {
 The `useToast` hook returns a `toast` function that you can use to display a toast.
 
 ```tsx
-import { useToast } from "@/components/hooks/use-toast"
+import { useToast } from "@/hooks/use-toast"
 ```
 
 ```tsx {2,7-10}