[BLD-271] Portal: Change Header nav link order (#8013)

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## PR-Codex overview
This PR focuses on modifying the `links` array in the `Header.tsx` file by removing and then re-adding the `Payments` and `Bridge` items, thereby changing their order within the array.

### Detailed summary
- Removed `Payments` link from the `links` array.
- Removed `Bridge` link from the `links` array.
- Re-added `Payments` link to the `links` array.
- Re-added `Bridge` link to the `links` array.

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

## Summary by CodeRabbit

* **Style**
  * Updated top navigation order: Payments and Bridge now appear after Contracts instead of immediately after Wallets.
  * Applies to both desktop navigation and the mobile menu, improving consistency across views without changing the available links or destinations.

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

Author: MananTank

apps/portal/src/app/Header.tsx

@@ -31,14 +31,6 @@ const links = [
     href: "/wallets",
     name: "Wallets",
   },
-  {
-    href: "/payments",
-    name: "Payments",
-  },
-  {
-    href: "/bridge",
-    name: "Bridge",
-  },
   {
     href: "/transactions",
     name: "Transactions",
@@ -47,6 +39,14 @@ const links = [
     href: "/contracts",
     name: "Contracts",
   },
+  {
+    href: "/payments",
+    name: "Payments",
+  },
+  {
+    href: "/bridge",
+    name: "Bridge",
+  },
   {
     href: "/tokens",
     name: "Tokens",