Add native support for Haha Wallet

[SalixDev]

Please add a first‑class hahaWallet export so dapps can import and render a Haha Wallet entry alongside existing wallets. HaHa wallet is a popular wallet on the Monad Blockchain.

Current behavior

• Haha announces via EIP‑6963 with info.rdns: "haha.me" and name: "HaHa Wallet".
• In the rainbowkit modal, it can only appear under the generic Injected/Browser entry (not a dedicated wallet).
• No hahaWallet export in @rainbow-me/rainbowkit/wallets.

Technical details observed

• EIP‑6963 announce event includes:
  • name: "HaHa Wallet"
  • rdns: "haha.me"
• Works as injected provider in desktop extension and mobile in‑app browser.

Proposed implementation sketch

• New connector at wallets/walletConnectors/hahaWallet/ similar to other EIP‑6963 + WC hybrids:
  • Discover provider:
    • From EIP‑6963: provider.info.rdns === "haha.me".
    • Else, fallback to window.ethereum if present.
  • createConnector:
    • Injected (targeting the discovered provider) when available.
    • Else getWalletConnectConnector({ projectId, walletConnectParameters }).
  • Supply mobile.getUri and qrCode.getUri if Haha provides deeplinks.

What would probably help to merge

• Confirmation from HaHa on:
  • Final display name and rdns.
  • SVG icon (28×28 or scalable), brand colors.
  • Download links (Chrome/Firefox/Edge, iOS, Android).
  • WalletConnect universal links/deeplinks (optional but recommended).