[chore]: migrate Dialog to use @fluentui/react-motions-preview

[layershifter]

Library

React Components / v9 (@fluentui/react-components)

System Info

N/A

Are you reporting Accessibility issue?

no

Reproduction

N/A

Bug Description

Actual Behavior

Uses motion defined by CSS & react-transition-group.

Expected Behavior

Uses a motion defined in @fluentui/react-motions-preview.

Logs

N/A

Requested priority

High

Products/sites affected

No response

Are you willing to submit a PR to fix?

yes

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.