react-spectrum

5afad49b - [RAC] Rename and export `defaultSlot` and remove `slotCallbackSymbol` from RAC (#5850)

[RAC] Rename and export `defaultSlot` and remove `slotCallbackSymbol` from RAC (#5850) * Removed slotCallbackSymbol as it is not used anymore. * Rename defaultSlot to DEFAULT_SLOT and export it from react-aria-components * Add default slot documentation * Remove unused import * Updated DEFAULT_SLOT documentation to use ButtonContext instead of a fake IconContext * Update advanced.mdx Co-authored-by: Daniel Lu <danilu@adobe.com> --------- Co-authored-by: Daniel Lu <dl1644@gmail.com> Co-authored-by: Daniel Lu <danilu@adobe.com> Co-authored-by: Robert Snow <rsnow@adobe.com> Co-authored-by: Reid Barber <reid@reidbarber.com>