feat: add Connected Button Group

According to the specs, the SegmentedButton is deprecated and replaced by Connected Button Group.

- Implement the new component according to specs: https://m3.material.io/components/button-groups/overview
- Reuse newly introduced tokens (shape, motion, typography, color etc)
- Extract component specific tokens for easier maintenance.
- Get inspired from TextInput/TextField, Switch, Checkbox, FAB components which have gone through modernization.

Related tasks:
- https://github.com/callstack/react-native-paper/issues/4936
- https://github.com/callstack/react-native-paper/issues/4928 (has a PR open already and we should reuse logic from there in this new component)

Start with the Material 3 Button Groups specification and the related issue #4928, including its open pull request, to identify reusable logic. Then review the modernization patterns in TextInput/TextField, Switch, Checkbox, and FAB. Done means a Connected Button Group component is implemented to the specification with the relevant shared and component-specific tokens.

Written by the indexing model from the issue text.