feat(react-bootstrap/fade): update props interface (#24763)

- add missing mountOnEnter
- rename transitionAppear to appear

types/react-bootstrap/index.d.ts

@@ -11,6 +11,7 @@
 //                 Vito Samson <https://github.com/vitosamson>,
 //                 Karol Janyst <https://github.com/LKay>
 //                 Aaron Beall <https://github.com/aaronbeall>
+//                 Johann Rakotoharisoa <https://github.com/jrakotoharisoa>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.6
 

types/react-bootstrap/lib/Fade.d.ts

@@ -5,7 +5,8 @@ declare namespace Fade {
     export interface FadeProps extends TransitionCallbacks, React.HTMLProps<Fade> {
         in?: boolean;
         timeout?: number;
-        transitionAppear?: boolean;
+        mountOnEnter?: boolean;
+        appear?: boolean;
         unmountOnExit?: boolean;
     }
 }