Add init support for using next 14 with app router

[deepjyoti30]

Before submitting a pull request, please make sure the following is done:

This PR adds next14 support with app router structure.

• [x] Describe the proposed changes and how it'll improve the library experience.
• [ ] Please make sure that there are no linting errors in the code.
• [ ] Add a demo video/gif/screenshot to explain how did you test the fix.
• [ ] If it is a global change, try to add any side effects that it could have.
• [ ] Create a PR to add/update the docs (if needed) at here.
• [ ] Create a PR to add/update the storybook (if needed) at here.

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