chore(react-tag-picker): modify roles for toolbar + buttons instead of listbox + options

[bsunderhus]

Previous Behavior

TagPickerGroup is currently using listbox role and all the Tags components inside of it follow along with option roles. Due to new design decisions we have scenarios where this combination of roles might not suffice

New Behavior

Modifies the roles of TagPickerGroup for toolbar and Tags for button, which is flexible enough for the new design specs

Related Issue(s)

• Fixes #

[github-actions]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
react-components react-components: entire library	1.165 MB 291.795 kB	1.165 MB 291.793 kB	-15 B -2 B
react-tag-picker @fluentui/react-tag-picker - package	184.228 kB 55.462 kB	184.213 kB 55.459 kB	-15 B -3 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-components react-components: Button, FluentProvider & webLightTheme	69.21 kB 20.174 kB
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	221.474 kB 64.058 kB
react-components react-components: FluentProvider & webLightTheme	44.447 kB 14.59 kB
react-portal-compat PortalCompatProvider	8.39 kB 2.64 kB
react-timepicker-compat TimePicker	107.513 kB 35.791 kB

_{🤖 This report was generated against b59061d2bf717f833fa28c4968b9238f6fdde962}

[github-actions]

Pull request demo site: URL