Send dismiss event when popover is closed

Summary: Dismissing the popover will stiop the user from being prompted for a while, so we only want to send this event when the user was proactively prompted in the first place - which is when we're using the eligibility check.

Reviewed By: passy

Differential Revision: D17343227

fbshipit-source-id: 95a071e34ce318fe49640c6ee9f68127957f390c

src/fb-stubs/UserFeedback.tsx

@@ -27,6 +27,9 @@ export async function submitComment(
 ): Promise<void> {
   throw new Error('Method not implemented.');
 }
+export async function dismiss(): Promise<void> {
+  throw new Error('Method not implemented.');
+}
 export async function getPrompt(): Promise<FeedbackPrompt> {
   throw new Error('Method not implemented.');
 }