Add bevy_ui_render feature to example_dialogue_view

[jameshiew]

I think the bevy_ui_render feature is implicitly needed as of Bevy 0.17 for bevy_yarnspinner_example_dialogue_view to render. I have a project where the example dialogue view stopped working on upgrading to Bevy 0.17, but adding this feature got it working again without any other changes.

[Copilot]

Pull Request Overview

This PR adds the bevy_ui_render feature to the bevy_yarnspinner_example_dialogue_view crate to ensure proper UI rendering with Bevy 0.17. This feature is now required for the example dialogue view to function correctly after upgrading from previous Bevy versions.

Key Changes:

• Added bevy_ui_render feature flag to Bevy dependency in example dialogue view crate

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