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	1.164 MB 291.232 kB	1.164 MB 291.229 kB	-15 B -3 B
react-tag-picker @fluentui/react-tag-picker - package	185.227 kB 55.684 kB	185.212 kB 55.681 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	222.703 kB 64.42 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	108.525 kB 36.087 kB

_{🤖 This report was generated against 5964b11d0ac272f2ae10e1081b8f0d1e17497eef}

[github-actions]

Pull request demo site: URL