feat(material/chips): hideMultipleSelectionIndicator

### Feature Description

I'm not sure if this is planned for future versions but would it be possible to have something similar to hideSingleSelectionIndicator but for when the multiple selection is set to true? I'm not quite sure why at the moment it's only an option for single selections so any information in that regard is appreciated.

### Use Case

_No response_

Start by locating the Angular Material chips implementation and tests for hideSingleSelectionIndicator, then inspect how multiple selection is handled. Add the corresponding multiple-selection option and tests showing that the indicator can be hidden when multiple selection is enabled.

Written by the indexing model from the issue text.