fix(ui): Fix OrganizationSwitcher avatar flash and polish popover styling #30900

Job	Run time
Check Permissions	7s
Formatting \| Dedupe \| Changeset	57s
Build Packages	55s
Static analysis	1m 25s
Bundle size	59s
Publish with pkg-pr-new	1m 20s
Unit Tests (**)	2m 27s
Unit Tests (**)	2m 50s
Integration Tests (ap-flows, chrome)	2m 21s
Integration Tests (fastify, chrome)	1m 55s
Integration Tests (express, chrome)	2m 11s
Integration Tests (generic, chrome)	6m 8s
Integration Tests (sessions, chrome)	2m 43s
Integration Tests (astro, chrome)	2m 58s
Integration Tests (tanstack-react-start, chrome)	2m 15s
Integration Tests (handshake:staging, chrome)	1m 28s
Integration Tests (custom, chrome)	2m 39s
Integration Tests (sessions:staging, chrome)	2m 29s
Integration Tests (react-router, chrome)	2m 6s
Integration Tests (localhost, chrome)	1m 56s
Integration Tests (electron, chrome)	1m 42s
Integration Tests (hono, chrome)	1m 47s
Integration Tests (nuxt, chrome)	2m 16s
Integration Tests (chrome-extension, chrome)	1m 56s
Integration Tests (billing, chrome)	4m 15s
Integration Tests (handshake, chrome)	1m 39s
Integration Tests (nextjs, chrome, 15)	6m 6s
Integration Tests (quickstart, chrome, 15)	2m 20s
Integration Tests (vue, chrome)	1m 59s
Integration Tests (machine, chrome)	5m 3s
Integration Tests (nextjs, chrome, 16)	5m 22s
Integration Tests (quickstart, chrome, 16)	2m 32s
Integration Tests (cache-components, chrome, 16)	1m 46s
	1h 20m 52s

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