Dashboard: Remove /routes (#8084)

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## PR-Codex overview
This PR focuses on the removal of several files related to the `bridge` feature in the dashboard and the addition of a new `tokens` page with metadata for improved SEO.

### Detailed summary
- Deleted files related to the `bridge` feature:
  - `utils.ts`
  - `layout.tsx`
  - `route.ts`
  - `page.tsx`
  - `opengraph-image.png`
  - Various components under `routes/components/client` and `routes/components/server`
- Added a new `tokens` page in `page.tsx` with:
  - Metadata for SEO, including title and description
  - Import of `PageHeader` and `TokenPage` components

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

## Summary by CodeRabbit

- New Features
  - Redirects: Visiting /routes now automatically navigates to /tokens (temporary redirect).
  - Tokens page now includes enriched metadata for improved previews and sharing.

- Refactor
  - Removed the legacy Routes dashboard and associated UI controls, streamlining navigation to the Tokens experience.

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

Author: MananTank

apps/dashboard/redirects.js

@@ -474,6 +474,11 @@ async function redirects() {
       destination: "/team/~/~/support",
       permanent: false,
     },
+    {
+      source: "/routes",
+      destination: "/tokens",
+      permanent: false,
+    },
   ];
 }