Change default tab bar button from "Pressable" to "PlatformPressable" (#1446)

Change default tab bar button from "Pressable" to "PlatformPressable"

- Fix inconsistent documentation between text and TypeScript definitions
- TypeScript correctly specifies PlatformPressable as default
- Aligns documentation with actual implementation
- Prevents confusion for developers using custom tabBarButton

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

Author: devJudicael

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

@@ -340,7 +340,7 @@ Accessibility label for the tab button. This is read by the screen reader when t
 
 #### `tabBarButton`
 
-Function which returns a React element to render as the tab bar button. It wraps the icon and label. Renders `Pressable` by default.
+Function which returns a React element to render as the tab bar button. It wraps the icon and label. Renders [`PlatformPressable`](elements.md#platformpressable) by default.
 
 You can specify a custom implementation here:
 

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

@@ -678,7 +678,7 @@ Only supported with `custom` implementation.
 
 #### `tabBarButton`
 
-Function which returns a React element to render as the tab bar button. It wraps the icon and label. Renders `Pressable` by default.
+Function which returns a React element to render as the tab bar button. It wraps the icon and label. Renders [`PlatformPressable`](elements.md#platformpressable) by default.
 
 Only supported with `custom` implementation.