Dashboard: Fix webhooks link in project/contracts page (#8547)

<!--

## title your PR with this format: "[SDK/Dashboard/Portal] Feature/Fix: Concise title for the changes"

If you did not copy the branch name from Linear, paste the issue tag here (format is TEAM-0000):

## Notes for the reviewer

Anything important to call out? Be sure to also clarify these in your comments.

## How to test

Unit tests, playground, etc.

-->

<!-- start pr-codex -->

---

## PR-Codex overview
This PR updates the URL structure for webhooks in the `page.tsx` file, changing the path from `/webhooks/contracts` to `/tokens/webhooks`.

### Detailed summary
- Modified the `href` property in the object from:
  - `href: `/team/${params.team_slug}/${params.project_slug}/webhooks/contracts``
  - to `href: `/team/${params.team_slug}/${params.project_slug}/tokens/webhooks``

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

<!-- end pr-codex -->

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

## Release Notes

* **Bug Fixes**
  * Fixed the "webhooks" navigation link in the Contracts page to correctly redirect to the tokens section instead of the contracts section.

<sub>✏️ Tip: You can customize this high-level summary in your review settings.</sub>

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: MananTank

apps/dashboard/src/app/(app)/team/[team_slug]/[project_slug]/(sidebar)/contracts/page.tsx

@@ -102,7 +102,7 @@ export default async function Page(props: {
             },
             {
               type: "webhooks",
-              href: `/team/${params.team_slug}/${params.project_slug}/webhooks/contracts`,
+              href: `/team/${params.team_slug}/${params.project_slug}/tokens/webhooks`,
             },
           ],
         }}