feat(ui): add Mosaic Avatar component #31512

Job	Run time
Check Permissions	10s
Build Packages	1m 40s
Formatting \| Dedupe \| Changeset	1m 16s
Bundle size	24s
Static analysis	27s
Unit Tests (**)	26s
Publish with pkg-pr-new	24s
Unit Tests (**)	24s
Integration Tests (sessions, chrome)	24s
Integration Tests (express, chrome)	23s
Integration Tests (localhost, chrome)	23s
Integration Tests (generic, chrome)	24s
Integration Tests (fastify, chrome)	23s
Integration Tests (ap-flows, chrome)	24s
Integration Tests (handshake, chrome)	23s
Integration Tests (handshake:staging, chrome)	1m 30s
Integration Tests (electron, chrome)	24s
Integration Tests (tanstack-react-start, chrome)	24s
Integration Tests (sessions:staging, chrome)	23s
Integration Tests (nuxt, chrome)	24s
Integration Tests (cache-components, chrome, 16)	24s
Integration Tests (quickstart, chrome, 15)	24s
Integration Tests (nextjs, chrome, 15)	24s
Integration Tests (chrome-extension, chrome)	24s
Integration Tests (billing, chrome)	22s
Integration Tests (react-router, chrome)	22s
Integration Tests (quickstart, chrome, 16)	25s
Integration Tests (vue, chrome)	23s
Integration Tests (astro, chrome)	23s
Integration Tests (hono, chrome)	24s
Integration Tests (custom, chrome)	23s
Integration Tests (machine, chrome)	23s
Integration Tests (nextjs, chrome, 16)	23s
	16m 4s

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