office-ui-fabric-react v7.131.0

Minor changes

• Checkbox: removed selectors wrappers in the styles, as they're no longer required. (PR #14707 by dzearing)

Patches

• GroupedList: Fixing errors in the examples that are triggered when the tsconfig strictFunctionTypes rule is turned on. (PR #14640 by khmakoto)
• Renaming Grid utility to ButtonGrid. (PR #14710 by czearing)