chore: fix nft chat examples, version bump up

[Aman035]

Fixes Issue

Changes proposed

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• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
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Note to reviewers

[github-actions]

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

1. There is a missing closing brace at the end of the skipExample function.

2. There is a missing closing brace at the end of the runNFTChatClassUseCases function.

3. There are two redundant await keywords before the PushAPI.initialize calls for userBob and userKate.

4. There is a missing closing brace at the end of the stream.on(CONSTANTS.STREAM.DISCONNECT callback.

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

1. There are no mistakes or typos in the package.json file. All looks good.