docs: mark tvOS as supported platform (#102)

Author: thymikee

docs/docs/docs/getting-started/introduction.mdx

@@ -8,5 +8,5 @@ React Native Bottom Tabs is a library that provides a native bottom tabs experie
 - iOS
 - Android
 - visionOS
+- tvOS
 - macOS (coming soon)
-- tvOS (coming soon)