fix: NFTChat High Level Fixes

[Aman035]

Fixes Issue

closes #937

Changes proposed

• Fixed minor issues for NFT profile with High Level Class Fn
• Added a reinitialize fn which lets the NFT owner to reset or fresh restart a NFT Account. ( Useful in case of NFT transfers without password acknowledgement )

   // Assuming userAlice is the new NFT Owner
   // The decryption of keys failed since the old signer does not match with new one and no password is provided.
   // SDK switches to Guest Mode
    userAlice = await PushAPI.initialize(
      new ethers.Wallet(
        `0x${process.env['NFT_HOLDER_WALLET_PRIVATE_KEY_1'] || ''}`
      ),
      {
        env,
        account: nftAccount1,
      }
    );
    
    // Error Log is Displayed to user

    // UserAlice Reinitialize for fresh start by providing a new password
    // Note : This works only when userAlice is the owner of the NFT 
    await userAlice.reinitialize({
      versionMeta: {
        NFTPGP_V1: { password: process.env['NFT_PROFILE_PASSWORD_1'] || '' },
      },
    });

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• This PR does not contain plagiarized content.
• The title of my pull request is a short description of the requested changes.

[github-actions]

File: packages/examples/sdk-backend-node/.env.sample

All looks good.

File: packages/examples/sdk-backend-node/chat/index.ts

• There are some commented lines of code that need to be removed.
• The indentation seems to be incorrect. The lines starting with console.log and await statements should be indented inside the runChatUseCases function.

Here's the corrected code:

import { runChatLowlevelUseCases } from './chat.lowlevel';
import { runNFTChatLowLevelUseCases } from './nftChat.lowlevel';
import { runChatClassUseCases } from './chat';
import { runNFTChatClassUseCases } from './nftChat';

export const runChatUseCases = async (): Promise<void> => {
  console.log(`
░█████╗░██╗░░██╗

[github-actions]

File: packages/examples/sdk-backend-node/.env.sample

• All looks good.

File: packages/examples/sdk-backend-node/chat/index.ts

• There is a code block that seems to be commented out and broken. It should be removed or fixed.

File: packages/examples/sdk-backend-node/chat/nftChat.ts

• The file is empty. It should contain code related to NFT chat functionality.

File: packages/examples/sdk-backend-node/package.json

• All looks good.

File: packages/restapi/README.md

• All looks good.

File: packages/restapi/src/lib/pushapi/PushAPI.ts

• Line 84: There is a missing closing parenthesis at the end of the if statement. It should be added.

File: packages/restapi/src/lib/pushapi/chat.ts

• The file is empty. It should contain code related to chat functionality.

[github-actions]

File: packages/examples/sdk-backend-node/.env.sample

WALLET PRIVATE KEY

WALLET_PRIVATE_KEY=your_channel_key

ENVIRONMENT OF PUSH NETWORK - prod, staging OR dev

PUSH_NODE_NETWORK=staging

TO ENABLE API RESPONSES TO BE SHOWN OR HIDDEN - true OR false

SHOW_API_RESPONSE=false

NFT CONTRACT ADDRESS

NFT_CONTRACT_ADDRESS_1=your_nft_contract_address

NFT CHAIN ID

NFT_CHAIN_ID_1=your_nft_chain_id

NFT TOKEN ID

NFT_TOKEN_ID_1=your_nft_token_id

NFT HOLDER WALLET PRIVATE KEY

NFT_HOLDER_WALLET_PRIVATE_KEY_1=your_nft_holder_wallet_private_key

NFT PROFILE WALLET PASSWORD

NFT_PROFILE_PASSWORD_1=your_nft_profile_password
NFT_CONTRACT_ADDRESS_2=your_nft_contract_address
NFT_CHAIN_ID_2=your_nft_chain_id
NFT_TOKEN_ID_2=your_nft_token_id
NFT_HOLDER_WALLET_PRIVATE_KEY_2=your_nft_holder_wallet_private_key
NFT_PROFILE_PASSWORD_2=your_nft_profile_password
NFT_CONTRACT_ADDRESS_3=your_nft_contract_address
NFT_CHAIN_ID_3=your_nft_chain_id
NFT_TOKEN_ID