feat(GlDuoChat): improved styling for context menu search items

What does this MR do?

This MR is part of a series of changes breaking down this initial MR.

Eventually, the component will allow searching and selecting context items from various categories, whcih get pinned to the Duo Chat conversation as context items.

MR	Status
feat(GlDuoChat): display attached context in ch... (!4540 - merged)	workflowcomplete
feat(GlDuoChat): add initial context item menu ... (!4573 - merged)	workflowcomplete
feat(GlDuoChat): improved styling for context m... (!4574 - merged)	workflowcomplete
feat(GlDuoChat): context menu initial items sea... (!4575 - merged)	workflowcomplete
feat(GlDuoChat): improved styling for context m... (!4576 - merged)	⏳ <-- you are here
feat(GlDuoChat): add context menu keyboard inte... (!4577 - merged)	⏳
feat(GlDuoChat): integrate context item menu wi... (!4560 - merged)	⏳
fix(GlDuoChat): update context-items-menu compo... (!4581 - merged)	⏳

This MR:

feat: add duo chat context menu search item formatting

• items styled correctly with icons and extra info
• item popovers included
• extract ID formatting logic from popover into shared util

Screenshots or screen recordings

header	header
	file
	issue
	MR
	popover
	popover (disabled item)

Integration merge requests

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