[Convai Widget] Fix button cursor style

[aarkalyk]

Fixes the styling on the Convai Widget buttons.

Screenshots

Before	After

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Note

Low Risk
Cosmetic CSS only; no auth, data, or logic changes.

Overview
Convai Widget buttons now show a pointer cursor on hover by setting cursor: pointer on button elements inside the widget host styles (index.css).

Includes a minor indentation-only change in Button.tsx (no behavior change).

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[Copilot]

Pull request overview

Updates the Convai Widget’s button styling so interactive buttons consistently show the pointer cursor, aligning the UI affordance with the actual click behavior.

Changes:

• Add cursor-pointer to the core Button component base classes.
• Add cursor-pointer to the widget expand button.
• Add cursor-pointer to the pending file remove (“x”) button.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
packages/convai-widget-core/src/widget/PendingFilePreview.tsx	Ensures the remove-file icon button displays a pointer cursor on hover.
packages/convai-widget-core/src/components/ExpandButton.tsx	Ensures the expand/open-chat button displays a pointer cursor on hover.
packages/convai-widget-core/src/components/Button.tsx	Makes the shared Button component display a pointer cursor by default for interactive states.

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[giannagerton]

@aarkalyk Maybe instead of adding cursor-pointer to each button, we could set it once globally on the button