fix(multi-select): fix invalid styling and ai-label positioning (#20620)

* fix(multi-select): fix invalid with ai-label positioning

* fix(multi-select): focus management

* fix: icon padding left

* fix(react): match list-box with design spec

* fix(WC): invalid filterable styles

* fix(WC): align with design spec

* feat(WC): add controls to multiselect stories

* feat(react): add controls to multiselect stories

* chore: remove test story

* fix: filterable, filterable with ai padding

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Co-authored-by: Lauren Rice <43969356+laurenmrice@users.noreply.github.com>
Co-authored-by: Taylor Jones <tay1orjones@users.noreply.github.com>

Author: 3 people