docs: fix of broken references due to endpoint change

[matheus-rodrigues00]

The change to put the following categories to /features/ broke some documentation endpoints:

• Directive Usage
• Composable Usage
• Motion Properties
• Transition Properties
• Variants
• Motion Instance

Just changed the endpoints to /features/{old-endpoint}

Closes #122

[nuxt-studio[bot]]

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Name	Edit	Preview	Latest Commit
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