[AI] Update storybook stories organization, website live demos

[tay1orjones]

The following steps need to be taken to reorganize the Slug/AILabel related stories as part of the effort to bring these components to stable:

• Rename unstable__Slug to AILabel and move out from under experimental
• Keep Default, Callout, and Playground stories under AILabel in the side nav
• Move each input example to live under that component's folder
  • For example, the unstable__Slug / examples / text-input story would move to TextInput / withAILabel
  • Do this for every component under unstable__Slug / examples
  • This should make it so that there is no longer an Examples directory under unstable__Slug (AILabel)
• Move all stories under unstable__Slug / DataTable / Column Slug Sort to be in their own subdirectory of DataTable - DataTable / With AILabel / Column Slug Sort, etc.
• Move the unstable__slug / form / form-example story to instead be in the Form folder, rename it to With AILabel
• Rename AiSkeleton* components to AISkeleton - this includes files, folders, exports, stories, etc.
• Move AISkeletonIcon, AISkeletonPlaceholder, AISkeletonText story folders to live under the Skeleton folder
• [AI] Add revert story for each input #16754