Add Chamber page with interactive voidlings and localStorage persistence

- Set up React Router for navigation between landing and Chamber pages
- Create Chamber page with floating animated voidlings
- Add ability to summon, name, rename, and release voidlings
- Implement mood system (idle, happy, curious, sleepy)
- Add localStorage persistence to remember voidlings between sessions
- Add float animation and visual effects

package-lock.json

@@ -9,7 +9,8 @@
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@@ -3230,6 +3243,42 @@
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