fix: only return NONE for styleReady when motionAppear is enabled

This addresses the PR comment suggesting that styleReady should only
return 'NONE' when motionAppear is true, otherwise it should always
render the children.

Ref: #73 (comment)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: zombieJ

src/hooks/useStatus.ts

@@ -312,7 +312,7 @@ export default function useStatus(
     mergedStyle,
     asyncVisible ?? visible,
 
-    !mountedRef.current && currentStatus === STATUS_NONE
+    !mountedRef.current && currentStatus === STATUS_NONE && motionAppear
       ? // Appear
         'NONE'
       : // Enter or Leave