Playground: Rename account-abstraction page slugs (#7756)

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## PR-Codex overview
This PR focuses on updating routing paths in the application to reflect new endpoints for account abstraction features. It changes the hrefs for specific wallet routes and adds new rewrite rules in the configuration.

### Detailed summary
- Updated `href` for the `sponsor` route to `/wallets/account-abstraction/eip-4337`.
- Updated `href` for the `7702` route to `/wallets/account-abstraction/eip-7702`.
- Updated `href` for the `5792` route to `/wallets/account-abstraction/eip-5792`.
- Added new rewrite rules in `next.config.mjs` for the updated routes.

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

## Summary by CodeRabbit

* **New Features**
  * Updated sidebar links for account abstraction wallets to use explicit EIP-prefixed paths for improved clarity.

* **Chores**
  * Added redirects to ensure legacy account abstraction wallet URLs automatically forward to the new EIP-prefixed paths.

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

Author: MananTank

apps/playground-web/next.config.mjs

@@ -111,6 +111,21 @@ const nextConfig = {
         destination: "/transactions/webhooks",
         permanent: false,
       },
+      {
+        source: "/wallets/account-abstraction/sponsor",
+        destination: "/wallets/account-abstraction/eip-4337",
+        permanent: false,
+      },
+      {
+        source: "/wallets/account-abstraction/7702",
+        destination: "/wallets/account-abstraction/eip-7702",
+        permanent: false,
+      },
+      {
+        source: "/wallets/account-abstraction/5792",
+        destination: "/wallets/account-abstraction/eip-5792",
+        permanent: false,
+      },
     ];
   },
   async rewrites() {

apps/playground-web/src/app/navLinks.ts

@@ -26,15 +26,15 @@ const staticSidebarLinks: SidebarLink[] = [
         name: "Ecosystem Wallets",
       },
       {
-        href: "/wallets/account-abstraction/sponsor",
+        href: "/wallets/account-abstraction/eip-4337",
         name: "EIP-4337",
       },
       {
-        href: "/wallets/account-abstraction/7702",
+        href: "/wallets/account-abstraction/eip-7702",
         name: "EIP-7702",
       },
       {
-        href: "/wallets/account-abstraction/5792",
+        href: "/wallets/account-abstraction/eip-5792",
         name: "EIP-5792",
       },
       {