feat(clerk-js): Add open sign-in/up to sandbox #10656

Job	Run time
Formatting, linting & changeset checks	37s
Unit Tests (18)	36s
Integration Tests (generic, chrome)	1m 6s
Unit Tests (22)	45s
Integration Tests (express, chrome)	1m 16s
Integration Tests (quickstart, chrome)	1m 3s
Integration Tests (ap-flows, chrome)	1m 13s
Integration Tests (elements, chrome)	1m 16s
Integration Tests (sessions, chrome)	1m 6s
Integration Tests (astro, chrome)	1m 18s
Integration Tests (expo-web, chrome)	1m 13s
Integration Tests (tanstack-start, chrome)	1m 10s
Integration Tests (tanstack-router, chrome)	1m 6s
Integration Tests (vue, chrome)	1m 7s
Integration Tests (nuxt, chrome)	1m 8s
Integration Tests (nextjs, chrome, 13)	1m 6s
Integration Tests (nextjs, chrome, 14)	1m 7s
Integration Tests (nextjs, chrome, 15)	1m 2s
	19m 15s

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