fix(S2): add styles prop to AlertDialog

[reidbarber]

Closes

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

🧢 Your Project:

[rspbot]

Build successful! 🎉

• View the storybook
• View the storybook-19
• View the storybook-17
• View the storybook-16
• View the S2 storybook
• View the documentation

[rspbot]

Build successful! 🎉

• View the storybook
• View the storybook-19
• View the storybook-17
• View the storybook-16
• View the S2 storybook
• View the documentation

[rspbot]

## API Changes

@react-spectrum/s2

/@react-spectrum/s2:AlertDialog

 AlertDialog {
   UNSAFE_className?: UnsafeClassName
   UNSAFE_style?: CSSProperties
   autoFocusButton?: 'cancel' | 'primary' | 'secondary'
   cancelLabel?: string
   children: ReactNode
   id?: string
   isPrimaryActionDisabled?: boolean
   isSecondaryActionDisabled?: boolean
   onCancel?: () => void
   onPrimaryAction?: () => void
   onSecondaryAction?: () => void
   primaryActionLabel: string
   secondaryActionLabel?: string
   size?: 'S' | 'M' | 'L' = 'M'
+  styles?: StylesProp
   title: string
   variant?: 'confirmation' | 'information' | 'destructive' | 'error' | 'warning'
 }

/@react-spectrum/s2:AlertDialogProps

 AlertDialogProps {
   UNSAFE_className?: UnsafeClassName
   UNSAFE_style?: CSSProperties
   autoFocusButton?: 'cancel' | 'primary' | 'secondary'
   cancelLabel?: string
   children: ReactNode
   id?: string
   isPrimaryActionDisabled?: boolean
   isSecondaryActionDisabled?: boolean
   onCancel?: () => void
   onPrimaryAction?: () => void
   onSecondaryAction?: () => void
   primaryActionLabel: string
   secondaryActionLabel?: string
   size?: 'S' | 'M' | 'L' = 'M'
+  styles?: StylesProp
   title: string
   variant?: 'confirmation' | 'information' | 'destructive' | 'error' | 'warning'
 }

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[reidbarber]

Looks like this was intentionally omitted.