#237 Expand StackedLayout tokens to include autohide classes

Basic information

Closes #237

Bug fix (non-breaking change which fixes an issue)
Enhancement (non-breaking change which enhances existing functionality)
New feature (non-breaking change which adds functionality)
Breaking change (fix, enhancement or feature that would cause existing functionality to change in backward-incompatible way)
Docs change
Refactoring
Dependency upgrade

[ ] I have read the project's CONTRIBUTING document
[ ] I have checked my code with the project's static analysis tooling
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[ ] My change requires a change to the documentation
[ ] I have updated the documentation accordingly
[ ] I have added a story to cover my changes
[ ] All new and existing story tests pass