Add unique key to custom tab bar item (#1390)

Co-authored-by: Satyajit Sahoo <satyajit.happy@gmail.com>

Author: babucarr32

versioned_docs/version-7.x/bottom-tab-navigator.md

@@ -161,6 +161,7 @@ function MyTabBar({ state, descriptors, navigation }) {
 
         return (
           <PlatformPressable
+            key={route.key}
             href={buildHref(route.name, route.params)}
             accessibilityState={isFocused ? { selected: true } : {}}
             accessibilityLabel={options.tabBarAccessibilityLabel}

versioned_docs/version-8.x/bottom-tab-navigator.md

@@ -238,6 +238,7 @@ function MyTabBar({ state, descriptors, navigation }) {
 
         return (
           <PlatformPressable
+            key={route.key}
             href={buildHref(route.name, route.params)}
             accessibilityState={isFocused ? { selected: true } : {}}
             accessibilityLabel={options.tabBarAccessibilityLabel}