NativeScript Vue (Part-2): basic UI and Layout

Topics:
- Basic UI
- Layout Design
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- NativeScript Vue (Part-1): App Page component
- NativeScript Vue (Part-3): Two-way Data binding & Event registration
- NativeScript Vue (Part-4) : ListView
- NativeScript Vue (Part-5): Works with multiple Vue Page component
- NativeScript Vue (Part-6): food review app