Add a New to Comflowy portal

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The issue title suggests adding a 'New' feature to the Comflowy portal, but the body is empty. Start by exploring the portal's frontend codebase to understand its structure and existing features. Look for entry points related to portal navigation or UI components. Determine what 'New' refers to—possibly a button, menu item, or page—by checking similar features in the code. Once identified, implement the addition and test within the portal interface.

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