fix(0.78): fix TextPropsMacOS using the wrong MouseEvent type (#2508)

## Summary:

`TextPropsMacOS` has been using `MouseEvent` defined by web as opposed
to React's.

See #2507.

## Test Plan:

n/a

Author: tido64

packages/react-native/Libraries/Text/Text.d.ts

@@ -16,6 +16,7 @@ import {TextStyle, ViewStyle} from '../StyleSheet/StyleSheetTypes';
 import {
   GestureResponderEvent,
   LayoutChangeEvent,
+  MouseEvent, // [macOS]
   NativeSyntheticEvent,
   TextLayoutEventData,
 } from '../Types/CoreEventTypes';