Add Crypto Donation Option with WalletConnect Integration

[phyleria]

Allow users to donate cryptocurrencies to non-profits using their wallets via WalletConnect. This feature will allow users to easily connect their wallets and send donations directly to the non-profit's specified crypto address.

Acceptance Criteria:

• Integrate WalletConnect to enable users to connect their wallets.
• Add a "Donate with Crypto" button on the non-profit's donation page.
• Fetch the non-profit's crypto wallet address from the backend and use it as the recipient address.
• Handle the donation transaction using WalletConnect and update the donation status accordingly.
• Display a confirmation message upon successful donation and handle any errors appropriately.

[ayan-joshi]

@phyleria Looks an interesting idea would like to work on it