React Native no incluye navegación integrada — la solución estándar es React Navigation (una librería popular) para moverse entre pantallas. Proporciona navegadores (stack, tabs, drawer) y maneja el estado de navegación, historial y transiciones.
Por qué es importante
Navigation isn't built into React Native → use REACT NAVIGATION (the de facto standard):
→ provides NAVIGATORS that structure how users move between screens:
STACK navigator → push/pop screens (like a stack — forward/back, the most common)
TAB navigator → bottom/top tabs (switch between sections)
DRAWER navigator → a side drawer menu
→ handles navigation state, history (back stack), transitions, headers
