feat(astro): Introduce `<Waitlist />` component #10577

Job	Run time
Formatting, linting & changeset checks	1m 31s
Unit Tests (18)	40s
Integration Tests (generic, chrome)	1m 24s
Unit Tests (22)	39s
Integration Tests (express, chrome)	1m 27s
Integration Tests (quickstart, chrome)	1m 27s
Integration Tests (ap-flows, chrome)	1m 24s
Integration Tests (elements, chrome)	1m 28s
Integration Tests (sessions, chrome)	1m 28s
Integration Tests (astro, chrome)	1m 28s
Integration Tests (expo-web, chrome)	1m 30s
Integration Tests (tanstack-start, chrome)	1m 24s
Integration Tests (tanstack-router, chrome)	1m 24s
Integration Tests (vue, chrome)	1m 22s
Integration Tests (nuxt, chrome)	1m 23s
Integration Tests (nextjs, chrome, 13)	1m 27s
Integration Tests (nextjs, chrome, 14)	1m 23s
Integration Tests (nextjs, chrome, 15)	1m 27s
	24m 16s

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